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China keeps benchmark lending rates unchanged for 16th month in September
China kept its benchmark lending rates unchanged for the 16th straight month on Sunday, in line with market expectations.
Steam Frame Gets First SteamOS Update With Substantially Faster Charging
Valve has released SteamOS 0.3.0 for the Steam Frame, the headset's first system update since it launched on September 14. The changelog lists "substantially faster charging while unit is off / sleeping," which addresses a complaint that came up repeatedly in early reviews. The Verge tested the...
Dodgers on Deck: Sunday, September 20 vs. Giants
The Dodgers conclude their penultimate home series of the regular season, taking on the San Francisco Giants on Sunday afternoon at Dodger Stadium. After dropping four of their first five games to the Giants this season, the Dodgers have beaten their longtime rivals three games in a row through Friday night, all in Los Angeles. […]
Butterfly Pavilion Scientists Complete Final Survey of Northwest Parkway Pollinator Corridor
Scientists from Butterfly Pavilion completed the second and final field survey on Monday along the Northwest Parkway’s southern right-of-way.
Roar & Explore vendor show highlights local businesses at Hovatter’s Wildlife Zoo
Hovatter’s Wildlife Zoo hosted its Roar & Explore vendor show, bringing together local businesses and community members for a day of shopping, family fun and wildlife.
Photos: Cincinnati Bearcats host Miami RedHawks at TQL Stadium
Cincinnati Bearcats host Miami RedHawks at TQL Stadium in Cincinnati on Saturday, September 19, 2026.
Hawaii offers tax relief for residents, businesses impacted by Hurricane Lowell
The relief applies to GET and TAT returns for the August through November 2026 tax periods.
Giants Prospect Continues Hot Stretch
Bo Davidson has carried his breakout from August into September for the San Francisco Giants.
Hennepin County sheriff's office lacks records to start small business grant fraud investigation
After Hennepin County staff reported apparent fraudulent applications for a small business recovery grant fund, they asked the sheriff's office to investigate in June, KSTP reports.In July the Hennepin County Sheriff's Office requested the documents they needed to open the investigation, but as of mid-September, those documents haven't been shared yet.
Nintendo has issued new batch of Switch 1 backwards compatibility fixes for Switch 2
Nintendo has now released new Switch 1 backwards compatibility fixes for Switch 2, and here's the full list.
Memphis Grizzlies: Today, on his birthday, we remember …
Memphis Grizzlies: Today, on his birthday, we remember …
7-Year-Old Boy Burned in Fire After ‘Science Experiment’ with Household Items Goes Wrong
“Every single day asks an unbelievable amount of strength from him,” a family member wrote on GoFundMe
San Siro 100: the special
19 September 1926 to 19 September 2026. One hundred years of San Siro, one hundred years of history that have impacted both the city of Milano and world football. Inaugurated by a 6-3 derby win for In...
Ed Sheeran's PA Concert Undergoes Major Change Amid Macklemore Controversy
Ed Sheeran's Saturday, September 19, Loop Tour concert in Philadelphia will feature a major change as the singer continues to face backlash.
UC temporarily blocked from enforcing transgender name and pronoun rules
In a conservative win, campus members of an education advocacy organization may refer to transgender people using names and pronouns that are not consistent with that individual's gender identity, according
Yankees Send Aaron Judge Back to the Injured List
The New York Yankees will once again be without their captain and reigning American League MVP, Aaron Judge. The team announced on Saturday morning that the 34-year-old will hit the 10-day injured list (retroactive to September 17th) due to a right calf strain. Judge only appeared in seven games after returning from a fractured rib …
Primary Health Network highlights gun lock program, suicide prevention efforts
(WJET/WFXP) — A regional healthcare provider is reminding the community of its suicide-prevention resources. In recognition of Suicide Prevention Awareness Month in September, Primary Health Networ…
Anthropic Reportedly Delays IPO; OpenAI Expects Massive Cash Burn
AI startup Anthropic is now targeting a November IPO, the Wall Street Journal reported.
Scientists Discover How the Brain Adapts When the Rules Suddenly Change
New study shows how the frontoparietal cortex manages information flow and guides responses. The frontoparietal cortex, the brain’s information hub, helps coordinate responses when circumstances change. While driving, for example, the brain must draw on a remembered route and the skills needed to operate the car while also responding to a street closure or changing
The September 11 cancer wave ahead
After the collapse came the dust. It billowed across Lower Manhattan in the wake of the 2001 World Trade Center terror attacks, turning people into ghosts as they trudged to safety.
TST Best Bets: September 19, 2026
Lane Kiffin’s return to Oxford was always going to be loud. After leaving Ole Miss for LSU last season, he’ll walk back into Vaught-Hemingway Stadium on Saturday as the coach of one of the Rebels’ biggest rivals. With both teams ranked in the top 10, there’s plenty at stake beyond the reception Kiffin gets.Earlier in the day, No. 16 SMU visits No. 23 Louisville in a ranked ACC matchup. The Mustangs have opened 2-0, while the Cardinals have a chance to make an early statement at home after a 1-1
Guardians News: When Detroit Wins, Cleveland Wins
News and Notes for Saturday, September 19th, 2026
Political cartoons for September 19
Saturday's political cartoons include blaming Biden, the center of attraction, and more
Seattle’s progressive values need businesses to succeed
As the Seattle mayor and council begin deliberations on the city budget, they should remember that a strong economy supports city services.
Bar Harbor Parents Again Raise Concerns About How Some Science Education In Sixth Grade.
The Bar Harbor Story is generously sponsored by Restaurant Barn. BAR HARBOR—Parents again raised concerns this week about how Bar Harbor students receive science instruction after fifth grade, months after the same issue came before the Bar Harbor School Board. The concern centers on a past scheduling change at Conners Emerson School that gives fifth graders a full year of science rather than switching between science and social studies at midyear. Principal Dr. Heather Weir Webster told the board that the school has been monitoring test scores, teacher feedback, and the experience of students as it considers whether the current approach is working. If it is not, the approach may be changed, but that would not likely occur this school year. In fifth and sixth grade, the school used to have one semester of social studies and one of science in each year. That schedule shifted because switching at midyear often broke up the learning units. So, approximately two-three years ago, they decided to shift that a bit. Science became a dedicated focus in fifth grade. Social studies was the dedicated focus in sixth grade. The school staff members are hoping to dive deeply into the data and see if the students are having a more quality experience throughout their time in those grades when it comes to science and social studies. If not, things could shift again. This year, Dr. Webster said at the September meeting, potential changes to curricula have been a bit complicated by moving into the school’s new building in late October and early November. “There have been no changes this year because it’s hard enough to handle the move. That allows them to have consistency,” Dr. Webster said. Dr. Webster said that after the Covid pandemic which prevented students from attending school in person, many fifth graders were struggling. “We tried several different configurations,” she said, including a co-teaching model to help with that struggle, but to also see how to best schedule and support those students. “We found that a January switch” where classes switched from social studies to science was really difficult. Part of the decision making stemmed from science being more hands-on and accessible to fifth graders. Social studies was a bit more abstract content, which was why the school tried the current configuration. In a letter submitted as public comment, parent Beth Dumont wrote, “In May 2026, I wrote to express my concern that our middle school students are not receiving consistent instruction in science and social studies. I appreciate that the Board took this concern seriously and requested a presentation from Principal Webster. I am also grateful for the opportunity to meet with Principal Webster and Julie Keblinsky in July to learn more about the current curriculum and scheduling. “During that meeting, I learned that the current model is intended to integrate science and social studies into other subjects during the years or semesters when they are not offered as standalone courses. “While I appreciate the intent behind this model, I remain concerned about its premise. Science and social studies are core academic disciplines that provide students with essential knowledge, skills, and ways of thinking. Yet under the current schedule, students are not guaranteed consistent instructional time in these subjects. Instead, exposure to content in these disciplines may depend on whether opportunities for integration arise within other classes. “To be clear, I strongly support interdisciplinary learning. Integrating science and social studies across the curriculum can enrich students’ educational experiences and help them make meaningful connections across subject areas. My concern is not with integration itself, but with relying on integration as a substitute for dedicated instruction in core disciplines.” Dr. Webster said that they’ve been monitoring test scores, talking to teachers, seeing how the pilot program works. It’s in its third year now of this schedule. One science teacher, she said, told her he’d seen positive outcomes with full year science and that there was a stronger classroom community. Another science teacher had concerns over the readiness last year, but she isn’t feeling that way about this year’s current class. A third teacher for social studies said he loves the full year. A fourth teacher of social studies hasn’t said that anything has changed. For the three fathers who spoke at the school committee meeting, the fractured science curriculum caused concerns. One father said that when he spoke to others, “all were surprised and confused as to why there was no dedicated, continuous science education,” at the school. Though students are testing well in science and math, he worried that without continuity in education, learning is lost. “We shouldn’t have to choose between key learning disciplines,” he said. Matthew Bergin, another father, agreed, adding, “I’m just a little concerned.” In her letter, Dumont wrote, “As the parent of a recent sixth grader who completed an entire year without a dedicated science course, I saw very little evidence that this integration was occurring in a consistent, systematic, or readily identifiable way. This is not a criticism of our middle school teachers, who have been uniformly excellent. Rather, it is a structural criticism of the current schedule.” Dr. Webster gave an update about all aspects of the schedule and how it’s created and she also spoke to social and emotional learning (SEL) in middle school. It’s explicitly taught but also embedded. Science is embedded as well and explicitly taught at all but that one grade. The school schedule is built from lunch out, then electives like art and physical education are placed, before going into the instruction time, teacher planning time, multi-tier support systems (MTSS), and then social and emotional learning. Teachers have to have 250 minutes a week of planning time per their contracts. That’s the minimum and occurs when their students are at specials. “The schedule is really not the purview of the board,” School Board Chair Marie Yarborough reminded the other board members and the public and thanked Dr. Webster for the presentation. The parents were also thanked for coming. LINK TO LEARN MORE [ ](https://barharborstory.substack.com/p/despite-strong-rankings-some-bar) [ Despite Strong Rankings, Some Bar Harbor Parents Raise Concerns About School's Science Education ](https://barharborstory.substack.com/p/despite-strong-rankings-some-bar) Carrie Jones · Jun 4 [ Read full story ](https://barharborstory.substack.com/p/despite-strong-rankings-some-bar) HELP SUPPORT THE BAR HARBOR STORY When we started The Bar Harbor Story, we didn’t know if anyone would read it. But you showed up. You shared. You sent tips. Now—over 400,000 views every month later—it’s clear: people here care about their community and each other. We’ve kept everything free because news should never be out of reach, but every one of our stories takes time to write, and your support keeps The Bar Harbor Story going. If you value our work, please consider a paid subscription, a founding membership, or a sponsorship. It truly helps us cover one more meeting, tell one more story, shine one more light. Even $5 a month makes a difference. Click here to become a one-time supporter now. Thank you so much for being here. Founding member information can be found here. Have questions about sponsorships? Just send Shaun an email at sfarrar86@gmail.com, he’d love to hear from you. Subscribe Share Bar Harbor Story Share Leave a comment
🤝 Deco: Raphinha, Bernal and Espart extensions agreed
As a warm-up to tonight’s match against Sevilla, FC Barcelona held its ordinary assembly of delegate members, featuring noteworthy remarks from president Laporta and also from Deco. The latter took ...
The Big Holes in Wearable Heart Rate Variability And Readiness Scores
On September 9th, Apple announced it was revamping its Apple Watch Health Sensing System, rolling out a Readiness score (0 to 10), and increasing the frequency of heart rate variability (HRV) outputs 24-fold. This can be viewed as upping its competition with various other consumer wearable sensors. These “readiness scores” as a composite of multiple metrics, with heart rate variability (HRV) being front and center for most. The majority of Americans are now using wearable sensors, which equates to well over 100 million adults. HRV and Readiness scores are increasingly being marketed as a measurement of autonomic nervous system health, a digital marker for future disease, a clock for biological age, and a holistic metric to promote healthspan and even longevity. (Apple also introduced a new longevity tab and “Health Age”.) None of this has been proven. In this edition of Ground Truths I am going to review what we know about heart rate variability and readiness scores. Heart Rate Variability HRV is the variation in normal heart cycle timing. The variability of the heart rate, the barely perceptible millisecond changes in time between consecutive heart beats (see R-R intervals in the Figure below, left panel), is due to interplay between the sympathetic and parasympathetic (vagal nerve) inputs. Distinct from heart rate, individuals with the same heart rate can have very different HRVs. It is a rough reflection of the autonomic nervous system (ANS) activity, inadequate to say whether a person’s ANS function is abnormal. For more than three decades, heart rate variability (HRV) has been measured and several studies have found an association of low HRV and clinical outcomes, particularly a link with higher all-cause and cardiovascular mortality. There have also been less well established links of low HRV to risk of early cognitive impairment, dementia, mental illness, Type 2 diabetes and substance abuse. An important reminder is that HRV is a surrogate marker without any established cause-and-effect relationship. If you increase your HRV, that doesn’t mean it will improve health outcomes. In fact, there is no hard evidence for that. All that work linking to health outcomes was done with electrocardiogram (ECG) derived HRV. Now, in the era of consumer wearables, this is getting assessed differently, by optical pulse (yes, the lights you see) plethysmography (PPG) or what is called pulse rate variability (PRV). They are not the same, as shown below (right panel) and only concordant when the delay between the ECG and pulse is kept constant, which basically means at rest. I should mention there’s also what I will call MPV, a mattress mechanical movement sensor, a derived heart rate variability, that companies like Eight Sleep use, even further away from directly measuring HRV. HRV has not one uniform measurement but many different types of quantification, such as RMSSD, the magnitude of difference between successive R-R intervals of normal sinus beats (N-N) or SDNN, the standard deviation of NN intervals, both in milliseconds. SDNN is one of the so-called frequency domain HRVs (others are LF, HF, LF/HF). Different wearable sensors use different metics; Apple has relied on SDNN and nearly all of the others use RMSSD, which is generally considered the more accurate metric. There’s also the different length of time measured, such as for a matter of minutes, all day, or an overnight’s sleep. Short measurements are especially problematic since they don’t capture enough of respiratory modulation and other factors that influence HRV. Share Ground Truths How well does HRV correlate with PRV? There are very limited studies, especially independently done. One that is commonly cited was conducted by Air Force researchers in only 13 healthy adults assessing Oura ring 3 and 4, Whoop 4.0, and Garmin Fenix 6 and showed a correlation coefficient of 0.88 to 0.97 and a mean absolute percentage error from 6 to 10%. The correlation is not a perfect 1.0, but there’s at least a fairly high level of correlation. HRV is supposed to increase during the night due to takeover of the parasympathetic nervous system, and higher during deep sleep. A recent example of my 1 week, all day “HRV,” and one during sleep is shown below. As you can see, the N of 1 data are inconsistent for the same days from different sensors (Oura, AppleWatch, Fitbit Air, and Eight Sleep) by patterns, absolute numbers, and comparison with prior days and weeks. The largest study in over 8 million Fitbit users (the old version, not Google Fitbit Air, introduced in May 2026) gives you a sense of the effect of age, sex, and the 2 different main HRV (here PRV) metrics, with RMSSD on the left and SDRR (=SDNN) on the right below. That study, from data collected in 2018, is a major outlier, since all the more recent ones are tiny with respect to sample size. Many of the companies have not had independent evaluation of their HRV, such as Eight Sleep, but have published a low standard error on their website. There are some other published studies on the correlation between HRV and PRV, but they are all small and only in healthy adults. A scoping review emphasized the lack of study in underrepresented individuals, including the aged, people of color (which affects the PPG signal), and individuals who are underweight or obese. Add the typical adult age 60 plus with one or more chronic diseases. For example, one study in over 900 adults found poor correlation of HRV and PRV, non-uniformly underestimated across many chronic diseases (cardiovascular, endocrine, neurological, respiratory, and others), concluding PRV is “an invalid surrogate for HRV.” A recent systematic review of 43 studies comparing HRV and PRV found reasonable pooled absolute standardized error (HRV as gold standard) but only 10 of the studies provided quantitative synthesis in ideal conditions. Their main conclusion was similarly cautious: “PPG-derived HRV [PRV] should not be regarded as universally interchangeable with ECG-derived HRV across all devices, populations, and recording contexts.” Factors Affecting HRV and PRV That gets me to the long list of factors that affect HRV (and PRV) besides the device, the type of measurement (RMSSD, SDNN or others), the person’s signal, the sensor site, the duration of data capture, if weighting by sleep stage is used, how artifact is processed and corrected. And this list is not complete!: Oura puts out data from their community of users (who input data) on what affects their overnight HRV. The factors currently provided are: no alcohol (increase 8%), melatonin (increase 2%, float tank (increase 2%), wine (decrease 4%), and party (decrease 14%) in overnight HRV. Must be some big parties! Subscribe What is a PRV measurement good for? It has been falsely characterized as an index of “autonomic balance” and a specific indicator of stress. A 2018 review of the studies available for HRV and its relationship to stress, not using any of the current wearables, found that stress can lower HRV. But so can many other factors. The non-specificity of the signal, indexed to the table above, is striking. Evidence from a UK Biobank study of over 46,000 participants with actual HRV looked at genetically predicted HRV, a genetic risk score, that failed to show the expected HRV-mortality link, indicating that _HRV is likely not causa_l, but rather a reflection of person’s physiologic state. A review of consumer wearable HRV data from 5 longitudinal studies showed that nighttime PRV was not associated with perceived stress, and surprisingly higher HRV, in the largest cohort (N=717 participants), was correlated with higher stress. An Oura ring cohort of 525 first-year college students found a link between overnight PRV and perceived stress, but that was also seen with resting heart rate, sleep, and respiratory rate. Several very small studies have examined the relationship of HRV and athletic injuries or guiding training with mixed, and predominantly negative results. HRV biofeedback training with paced breathing had no significant effect on reducing stress or raising HRV, as demonstrated with sham controlled trials. When HRV for multiple days showed a decline in conjunction with body temperature, the Oura ring published data for prediction of Covid. The WHOOP company sponsored an observational study, published in 2026, of 30,000 users for 72 weeks, without a control group, that reported reduced alcohol intake (5.8 % points) by self-report. That doesn’t tell us much, and particularly about the merits of HRV for behavioral change. If you use the same device and conditions as longitudinal trends for multiple (at least 2-3) weeks that may be the one way to get something useful from the measurements. Data for overnight sleep with minimal motion and using RMSSD is the best proxy for real HRV. The reason to look at trends rather than any given night is that it more likely represents something, even though you won’t know with certainty what the “it” is. Keep in mind there are no data, no peer-reviewed evidence, to show that HRV fluctuation in-person has any correlation with health outcomes. Share Readiness Scores These are proprietary scores that integrate different metrics for each of the wearables: no algorithms have been disclosed. They are unvalidated against health outcomes. In a review of 14 composite health scores of readiness and recovery, HRV contributed 86% to the scores, followed by reading heart rate (79%), physical activity and sleep duration (both at 71%). That review noted the substantial variability in measurement protools and lack of standardization. Sleep staging is notoriously inconsistent and inaccurate by these sensors, which adds further to the HRV uncertainties for what the scores, which use sleep stage data, mean. Only resting heart rate has been shown consistently across devices to be extremely accurate. I’ve made a Table to summarize what we know about which metrics are included, the scores, any peer-reviewed studies that compared the readiness score with health outcomes, and the corresponding (if any, NA-not available) citation. You will note that some companies do not use the term “readiness," such as WHOOP for recovery, and Garmin, which has 2 different scores, one of which is Body Battery. Eight Sleep uses the term “Fitness Score.” They all include HRV; Apple includes a new metric they call “Recovery HRV” which among other components uses 7-days of sleep, but it is unclear what this means or how it is differentiated from other scores (there are clearly no data for outcomes). We have no knowledge of how the different components are weighted or whether any of these scores are better than resting heart rate, HRV alone, physical activity, or any other single metric. Since none of these are standardized, they are not interchangeable, so if you get a 90 for Oura that has no relationship to a 90 on a Google Fitbit Air. Notably, the company can update its algorithm for readiness score at any point without notification to device users. Without any useful evidence of actionability for these scores or established relationship with health outcomes, it is hard to make a case for their value. At the Apple recent announcement they showed their Readiness score (0-10) on the watch (Figure below) but there are no published data on this score, not even on their website. It’s available only on their new Watch Series 12 or Ultra 4 [of course, ;-)]. That exemplifies the problems with these scores, lack of data and evidence for being meaningful to promote health. Perhaps the best study (which isn’t saying much) is the WHOOP Recovery for golfer performance, because it did correlate with an objective outcome, even though there was no control group and the authors were all from the company. Among the 389 pro golfers, an absolute 10-per cent point increase in Recovery score was associated with about 0.5 fewer strokes per round. But that’s hardly a health outcome! WHOOP is also conducting a study in over 2,700 runners to see if their recovery score will be linked to less injuries and improved performance, but that is not yet published and has no control group or randomization. Putting This in Context For two decades I’ve been enthusiastic about the potential for digital health and particularly wearable biosensors. Over the years, we’ve seen some great progress for their ability to promote physical activity and accurately detect atrial fibrillation (the first FDA cleared deep learning AI for consumers). That work was the subject of rigorous research. But there are holes in the data and evidence for other metrics. One notable one is the “VO2 max” story that I wrote about earlier this year. At that time many subscribers asked me to cover heart rate variability, which I finally got to here. When I dived into the research and publication for HRV and readiness scores, I expected to find at least some that were of high quality and demonstrated their utility by linkage to health outcomes. To my surprise, I found none. The wearable sensor measurements for HRV (PRV) are, for the most part, accurate, but that validation work has only been done in small studies of healthy adults and does not take into account the long list of factors, from the device, software side, and the user side, that affect HRV measurements. Moreover, this metric chiefly relies on optical sensing and, as we have learned for heart rate PPG sensing, may be less accurate in people of color. Keep in mind that all of the health outcome association evidence comes from ECG-derived HRV; none are from wearable sensor data. I will repeat the key point: there's no peer-reviewed evidence to show that in-person HRV fluctuation—or efforts to raise your HRV— has any correlation with health outcomes. For those of you who look at your HRV on awakening, or even 2+ week trends of it being low, I hope this context helps to relieve any anxiety. Yes, low HRV (not PRV) has been shown to increase risk of some diseases as summarized above. But efforts to raise your HRV—a surrogate metric— has not been established for improving any health outcomes. HRV does not have any evidence of causality (the genetic evidence actually goes against this possibility). In this summary, I have not included data for other wearable sensors such as Polar, Samsung, Withings, Suunto, Amazfit, Coros, Ultrahuman, or additional mattress sensors. These are beyond my first-hand experience, and as far as I know from my in-depth review none have any peer-reviewed published data that differ from the 6 sensors I’ve reviewed here. From the points I’ve gone over above, we’re not ready for readiness scores. Besides being proprietary, they are predominantly based on metrics that have their own issues. It’s compounding the problem, like building a house without a solid foundation that has never undergone a rigorous inspection, and then selling it. Like I mentioned for PRV, you can look at trends over weeks rather than any single day, to get a handle, but even that may not be helpful. There’s simply no evidence that these scores meaningfully relate to health outcomes. I’d emphasize they might, but that requires doing prospective or randomized studies to prove it. None exist. There’s great promise for HRV/PRV utility_. For example**,**_ Prof Maiken Nedergaard, who discovered the brain glymphatics that are essential in eliminating metabolic waste products from the brain during sleep, has posited that HRV could be a non-invasive marker for neuromodulator oscillations, brain-body regulatory circuits, and brain clearance. That would be extremely useful, but like everything else on HRV and readiness scores it requires solid research and validation. The lay media isn’t helping much to get the story straight. Earlier this year The Economist published a piece entitled “The most useful indicator of your overall health” which ordained HRV as an “accumulated stress score.” That’s akin to the false assertion about VO2max: “V02 max is the singular most powerful marker for longevity.” As I’ve summarized here, that is not established. The fact is that so many things can lower HRV, including physical exercise (especially an intense workout), reduced sleep quality, stress, the list above, no less the device, signal, and software. Whatever fluctuations observed have not been correlated with any health outcome. Sadly, “datamaxxers” are widely using HRV and readiness scores that have never been validated to mean anything. We already know that for some people using the sensors for sleep metrics, it can induce “orthosomnia,” an obsession to get high sleep quality, with associated high levels of anxiety. In an experiment done by a company to promote sleep quality for its employees, “For those employees who did use the trackers, many reported feeling perfectly rested until their tracker told them they had had a terrible night. Others were told that they had slept like a baby when they had actually been lying awake worrying about the quality of their sleep. “ The same problem can result from preoccupation with HRV or readiness scores, with anxiety that would lead to further reduction in both. It you are using a wearable like >100 million American adults, it’s OK to look at these data, but contextualized with the major caveats reviewed here. If you are one to require evidence that HRV or readiness scores are linked to health outcomes, you may not even want to look. The companies make it hard to turn them off! Let me end with the companies that make and sell wearables. Apple’s doubling down on HRV (24-fold more reporting and heart rate very 5 seconds) and introduction of a Readiness score tells us that consumers have bought into these metrics and they are joining the club. However, all of this is occurring with a backdrop of tens millions of users, claims about the data that are not backed up by adequate evidence, marketing way out in front of whatever limited data exists, and not being transparent about their readiness score algorithms. The companies can well afford to do the research that is needed to connect these metrics with health outcomes show, once and for all, that increasing HRV or using readiness scores promotes our health. If they believed and invested in the products they are selling, we’d not be in this position of not knowing. That’s essentially where we are with HRV and readiness scores. Perhaps someday this will change and we’ll have good reason to embrace them. NB: I wrote this post. No AI. I have no conflicts of interest with any of its content. Loading... Ground Truths has 215,000 subscribers from every US state and 214 countries. There are over 300,000 followers of Ground Truths so more than 90,000 folks who can easily convert to be free subscribers. Your subscription to these free essays and podcasts makes my work in putting them together worthwhile. If you’re not a subscriber, please join! If you found this interesting PLEASE share it! Share Ground Truths The proceeds from all voluntary paid subscriptions go to support our summer internship program. It enabled us to accept and support a record number of 62 summer interns that joined us in 2026! These are high school, college and medical students selected from thousands of applicants. We couldn’t do this expanded program without the funds coming in through Ground Truths. Thank you!
Tennessee football all-time results on September 19
Tennessee football history: September 19 game results all time
Apple Top Executive Doesn't Want You To Use Screen Protector On iPhone: 'It Makes My Skin Crawl'
Apple's new Vice President of Hardware Engineering, Tom Marieb, dislikes iPhone screen protectors, saying it makes his 'skin crawl'.
Council of Europe urges Turkey to free jailed Kurdish politicians
The Council of Europe’s Committee of Ministers has called on Turkey to immediately release jailed Kurdish politicians Selahattin Demirtaş and Figen Yüksekdağ Şenoğlu, repeating a demand based on binding European court rulings. The committee adopted the decision during a human rights meeting in Strasbourg on September 15 and 16. It urged Turkey’s government and courts […]
Atlético v Chapecoense: Galo are in action today!
Atlético vs. Chapecoense – September 19 (Saturday) – 4:00 PM🏆 Tournament: Matchday 28 – Brazilian Championship🏟️ Venue: Arena MRV, Belo Horizonte🐓 Pre-match, Commentary, and Post-mat...
What happened when scientists grew human brain tissue inside mice - Futura-Sciences
Without native tissue in the way, the transplanted human cells multiplied to five times their initial size, grew their own blood vessels, and connected directly to the mice’s spinal cords. Led by first author Kelley Kaganovsky and senior author Sergiu Pașca, the team published the findings in Nature on September...
Saturday Rockpile: Will the real Rockies please stand up?
Colorado Rockies news and links for Saturday, September 19, 2026
Endorsement: Prop 44 uses vulnerable patients as cannon fodder
OPINION: On its surface, everything about Prop 44 on California’s November ballot looks appealing. But you don’t have to dig deep to spot the farce, the Chronicle’s editorial board writes.
Watch the Celtic v Rangers LIVE on CelticPlayer
Celtic are back in league action tomorrow (September 20) as they take on Rangers at Paradise, looking to secure an important three points in the Scottish Premiership.Join us for the match tomorrow wh...
Five One UI 9 features you should try first
Samsung released the stable One UI 9 update for the Galaxy S26 series in Korea on September 16. A wider rollout should start from September 21, with devices suc
Phillies Move Toward Deal With Braves Superstar Ronald Acuna’s Brother
The Philadelphia Phillies are reportedly nearing a contract agreement with a historic talent in an Atlanta Braves family member
September is unkind to Sean Payton-led teams
Sean Payton is a historically sub-.500 coach in September. Not the best data to dig up this morning, but it is what it is.
What Could Save Civilisation From Collapse? Scientists Simulate 1,000 Years
A new 1,000-year computer simulation explores how technological civilisations could survive disasters and recover from collapse.
Leif-Erik Holm leads latest AfD charge in eastern Germany
A founding member of Germany's right-wing populist AfD, Holm is hoping to take the anti-immigration party into power in Mecklenburg-Western Pomerania's state elections.
Stevie Wonder and the Politics of Rhythm
Lee Humber looks at the legacy of Stevie Wonder In September 1976, exactly fifty years ago this month, Stevie Wonder released Songs in the Key of Life (SKL).
Remembering designer Bob Mackie and his impact on American culture [Unscripted column]
When I was a tween and then a teen in the late 1960s and into the ’70s, I wouldn’t dare miss “The Sonny & Cher Comedy Hour” or “The Carol
Best Hulu deals and bundles: Best streaming deals in September 2026
Stream excellent shows and movies at a heavily discounted price.
Rays Get Contributions From Entire Roster While Seeking Division Title
Richie Palacios, Cam Booser, Victor Mesa, Jr. and Cole Sulser have been enjoying productive Septembers in helping the Tampa Bay Rays' pursuit of an AL East crown.
Golden Nuggets: Eddy Pineiro remains the league’s sickest kicker
Your daily San Francisco 49ers news for Saturday, September 19th, 2026
Science program elimination at Southeastern Voc Tech sparks backlash
Natural life sciences students and alumni crowded a September school board meeting to passionately defend the value of the shop.
Meta (META)’s Stilla.ai Deal Could Turn Business Agent Into a New Monetization Engine
Meta Platforms, Inc. (NASDAQ:META) is taking another step toward monetizing artificial intelligence beyond its core advertising business. On September 9, the company acquired AI startup Stilla.ai. The acquisition will strengthen the company’s agentic AI capabilities as it moves to capitalize on growing demand for AI agents that can handle business transactions. Plans are underway to […]
Patriot dedicated to Hong Kong: business heavyweights remember Tung Chee-hwa
The South China Morning Post shares reflections from people who knew Hong Kong’s first chief executive.
Why losses haven't shaken Pearl-Cohn football's championship aspirations
Here's why Pearl-Cohn football isn't sweating three early-season losses, with aspirations of a state title in December.
Air Force Officer Charged After Protesting Trump Says He Spoke to Defend Constitution
Major Jason Watson could face court-martial in what could become a rare test of a service member’s right to publicly dissent.
Sunderland vs Manchester City Premier League Prediction, Odds, Pick
Read Sunderland vs Manchester City predictions, picks and odds in our Premier League betting preview for Sunday, September 20.
Local Burbank business remembers NewsChopper 4 pilot George Marciniw
NewsChopper 4 pilot George Marciniw remembered by Burbank business. Brittany Hope reports for NBC4 at 5 p.m. on Sept. 18, 2026.
Los Alamos ScienceFest Returns September 18–26 with ‘It’s All Elemental!’
Scene from ScienceFest Discovery Day 2024/Courtesy photo Scene from Discovery 2025 at Los Alamos ScienceFest/Curtesy photo LOS ALAMOS MAINSTREET NEWS RELEASEReceived Sept. 18 Get ready for a week o…
Pathways Community raises money for mental health
Members of the Pathways Community and their staff served hotdogs and bratwursts to support upcoming mix and mingle events.
COVID-19 cases increased in August, September. Why doesn't Metro Health's dashboard show it?
Political Connections Florida September 18 2026
Political Connections airs each weeknight at 7 p.m. on Spectrum News.
Business briefs
NEW TO BOARD: The Autism Society of Mahoning Valley recently named four new members to its board of directors. The new board members bring diverse professional experience in human resources, healthcare, workforce and economic development, and real estate, strengthening the Autism Society’s leadership as it expands programs, partnerships, community engagement, and resources for individuals and […]
Business briefs
NEW TO BOARD: The Autism Society of Mahoning Valley recently named four new members to its board of directors. The new board members bring diverse professional experience in human resources, healthcare, workforce and economic development, and real estate, strengthening the Autism Society’s leadership as it expands programs, partnerships, community engagement, and resources for individuals and […]
COVID-19 cases increased in August, September. Why doesn’t Metro Health’s dashboard show it?
Frankie Muniz Talks 'Hitting Rock Bottom' and More Top Us Stories
Get a rundown of Us‘ top stories making headlines in celebrity news, sports and entertainment on September 18, 2026.
Izzo Lands Five-Star Point Guard Antonio Pemberton
Five-star point guard Antonio Pemberton committed to Michigan State on Friday, picking Izzo over seven other finalists. #GoGreen
Pa’ La Cancha, Chivas’ Official Video Game
Guadalajara, Jalisco, September 18, 2026.- Chivas announces the launch of its official video game, available for download on mobile devices starting today. It is the first video game created from the ...
Pa’ La Cancha, Chivas’ official video game
Guadalajara, Jalisco, September 18, 2026.- Chivas announces the launch of its official video game, available for download on mobile devices starting today. It is the first video game created from scra...
Syracuse Women's Basketball Announces Unique Tip Off For December Game
The Orange will host a different group of fans to the winter match up
Welcome to The World's Game: EA Sports FC 27 Early Access Trial with EA Play Available Today
The EA Sports FC 27 10-hour EA Play trial is now available on XBOX Series X|S, XBOX One, and XBOX on PC for Game Pass Ultimate and PC Game Pass members. If they decide to buy, their progress carries over to the full game, so they can pick up the season right where they left off.
Iran war’s cost grows to $43.6 billion in new U.S. military estimate
The figure is from U.S. Central Command, which oversees operations in the Middle East
Congress College Sports Acts
U.S. Sen. Maria Cantwell, D-Washington, left, speaks as Sen. Ted Cruz, R-Texas, right, listens during a September 14, 2026 news conference on their college sports bill tol Hill, Sept. 14,
PAHO: Strengthening El Niño raises growing health risks across the Americas
Drought, food insecurity, dengue, wildfires, and flooding are already affecting several countries across the region as El Niño intensifies.Washington, D.C., September 18, 2026 (PAHO) – El Niño continues to strengthen and could have significant public health impacts across the Americas in the coming months, according to the Pan American Health Organization’s (PAHO) first regional situation report on the phenomenon.
UA Trustees seek review of athletic program competitiveness
With Razorback football program failure becoming an obvious concern debated with varying degrees of vigor in many breakfast diners statewide, a member of the University of Arkansas Board of Trustees...
Trailside Nature & Science Center Modified Hours of Operation
Trailside Nature & Science Center will be closed to the public beginning Wednesday, September 23 at 12:00 p.m. through Friday, September 25 at 1:00 p.m. due to a scheduled conference being held…
TST Best Bets: September 18, 2026
Friday night’s college football slate features four undefeated teams looking to prove themselves against conference competition.No. 22 Houston travels to face No. 13 Texas Tech in a ranked Big 12 matchup, while No. 5 Miami visits Wake Forest for an ACC battle between 2-0 teams. With both favorites facing their toughest tests of the young season, we’re breaking down the best bet from each game.For all of your college football betting picks, here are today’s TST Best Bets, brought to you by BetOnl
Cherokee Nation shines light on Alzheimer’s
To help raise awareness for Alzheimer’s disease and dementia, a proclamation was signed Sept. 15 in the Cherokee Nation recognizing September as World Alzheimer’s Month.
Who you gonna call? Mon-davi ...
The first two events in the Mondavi Center's all season are coming up in late September, with many more events scheduled in October and November.
6 ways to manage your healthcare costs
Unlike a mortgage or utility bill, healthcare costs can vary widely each month. These strategies can help you understand your coverage and better prepare costs.
Housing authority subsidiary nixes mayoral candidate ‘evaluation’ effort
An effort by a subsidiary of the Fort Smith Housing Authority to produce a mayoral scorecard ahead of the November 2026 general election was short-lived after it received criticism from...
Housing authority subsidiary nixes mayoral candidate ‘evaluation’ effort
An effort by a subsidiary of the Fort Smith Housing Authority to produce a mayoral scorecard ahead of the November 2026 general election was short-lived after it received criticism from...
WA, FTC reach $225M settlement with multilevel marketing company Amway
The lawsuit accused Amway and two of its affiliates of using unfair and deceptive tactics to recruit members.
Analytics and Data Science News for the Week of September 18; Updates from Alteryx, Databricks, Golden Analytics & More
Solutions Review Executive Editor Tim King curated this list of notable analytics and data science news for the week of September 18, 2026. Keeping tabs on all the most relevant analytics and data science news can be a time-consuming task. As a result, our editorial team aims to provide a summary of the top headlines […]
Nets' Second-Year G Dёmin Tagged As Breakout Candidate
With members of the Brooklyn Nets setting lofty expectations on this year's group, second-year G Egor Dëmin is at the forefront of this belief. If he can carry over his strides in the Summer League, Dëmin is in for a big year.
Novant Health drives $4.33B in regional economic impact, study says
Novant Health Coastal Region generates an annual overall economic impact of $4.33 billion in the Wilmington Metropolitan Statistical Area (MSA), according to a new report. Commissioned by Novant Health and conducted by Mouhcine Guettabi, associate professor of economics at the University of North Carolina Wilmington and the area’s regional economist, the report evaluates population growth in New Hanover, Brunswick and Pender counties and whether the area’s healthcare infrastructure is positioned to meet the region’s demand. According to the study, while healthcare employment has kept pace with population growth in New Hanover and Pender counties, it has not kept up with the rapid population growth in Brunswick County, which is skewed toward an older population. “It points very clearly to Brunswick County being the bottleneck, or being the place where investment is most needed,” Guettabi said to the Business Journal Friday, “because the growth is the fastest, the composition of the growth is older (adults) and demand for healthcare is much higher for the subpopulation.” The Novant Health Coastal Region employs 8,295 full-time equivalent workers, according to the report, and is the region’s largest employer. Overall, through direct, indirect and induced impacts, the Novant Health Coastal Region supports 19,573 jobs, the report said. Using data collected from internal payroll, financial and capital reports, the report estimates that Novant Health Coastal Region pays approximately $1.15 billion in total compensation to its employees. According to the study, the provider’s annual operating expenditures, or direct economic impact, total $2.36 billion. That direct impact ripples through the regional economy through spending at its suppliers, or indirect impact, and household spending by staff and its suppliers’ workers, or induced impact. The report estimates the Novant Health Coastal Region’s indirect economic impact is $786 million, reflecting the multiplying effect of the provider’s operating expenses on expenditures like medical supplies, facilities, food, IT and professional services. Because 86.9% of Novant Health Coastal Region employees live within the tri-county region, the report estimates that wages paid by Novant circulate into the regional economy, creating an induced economic impact of $1.17 billion. “That money just doesn’t go into thin air,” Guettabi said of the wages paid to Novant Health Coastal Region employees. “Some of that money is being re-spent, and therefore it’s supporting grocery stores, hiring, restaurants and bars, and there are a lot of other companies or organizations whose employment, whose activity partially depends on that.” The combination of direct ($2.36 billion), indirect ($786 million), and induced ($1.17 billion) impacts totals an estimated $4.33 billion, according to the report. A study commissioned by Novant Health in 2024 and conducted by FTI Consulting’s Center for Healthcare Economics and Policy found that Novant Health generated nearly $2 billion of direct impact, with $628 million in indirect impact and $857 million in induced impact. Healthcare investments in the pipeline for Brunswick County Additionally, the study found that while healthcare employment has kept pace with population growth in New Hanover and Pender counties, it lags in Brunswick County. “Once you go below the metro level and you decompose the three counties that make up the Wilmington Metro,” Guettabi said, “it becomes fairly clear that Brunswick is the standout. And not only that, but clearly the growth there is fully domestic migration and largely retiree-driven migrants.” Using data from the Centers for Medicare and Medicaid Services on per-capita healthcare spending among age groups, Guettabi estimates that adults aged 65 and older demand 2.44 times the healthcare of working-age adults. “The share of the population in Brunswick County that’s over the age of 65 is 33%,” Guettabi said, “which is so much higher than the average share of people over the age of 65 within the state or within the country.” The report emphasizes that Brunswick County is the “strongest candidate” for new healthcare investment, adding that patient discharge records show Brunswick residents rely heavily on facilities in New Hanover County for inpatient care. “Investments in Brunswick County would not only meet the demand for those residents, but it would also relieve pressure for New Hanover County residents,” Guettabi said. Laurie Whalin, president of the Novant Health Coastal Region, told the Business Journal Friday that the provider plans to expand services at Novant Health Brunswick Medical Center, in addition to other investments in the area. In April, the state granted conditional approval to both Novant Health and Columbus Regional Healthcare System to build new hospitals, just miles apart, on either side of the Columbus County and Brunswick County borders. Columbus Regional’s $214 million 30-bed hospital would be located at the former Acme-Delco Middle School in Delco, according to the application. The project’s approved timetable has construction slated to finish in May 2029, with the hospital open for service by October 2029. The Whiteville-based provider, which Atrium Health manages, broke ground on an Advanced Care facility in December 2025 and operates four specialty clinics in Leland. Meanwhile, Novant Health’s proposed $251 million 20-bed hospital would be built just miles from Columbus Regional’s proposed hospital, near the Compass Pointe community in Leland. The provider estimates the hospital will open by 2030. State officials also approved Novant Health in March to build a freestanding emergency department in Carolina Shores, near U.S. 17. The project is estimated to cost $24 million, according to the application, and will operate under the Novant Health Brunswick Medical Center license. Additionally, Novant Health’s 16,000-square-foot ambulatory surgery center is slated to open in Leland by year’s end, officials said.
Public Administration vs. Politics: What Public Administrators Can Do Beyond the Rhetoric
The views expressed are those of the author and do not necessarily reflect the views of ASPA as an organization. By George S. WelchSeptember 18, 2026 Every election cycle produces a familiar pattern. Candidates make promises. Political leaders exchange criticism. Advocacy groups mobilize supporters. Social media amplifies conflict. News coverage focuses on controversy, competition and […]
Browns' Secondary May Be Shorthanded Against Buccaneers
Only one player has been ruled out for Cleveland Browns showdown with Baker Mayfield and the Tampa Bay Buccaneers, while a key member of the secondary is questionable.
James Burdick, MD: Harnessing health care wizardry
AMA member and senior physician James F. Burdick, MD, has made a big mark over his extensive career as a transplant surgeon.
James Talarico, Seeking Black Votes in Texas Senate Rate, Wins Crucial Endorsement
The Congressional Black Caucus’s political wing backed James Talarico, who defeated a Black opponent in the primary. He faces Ken Paxton, the Republican state attorney general, in November.
Congress session highlights value of youth engagement in health
The European Respiratory Society Congress featured a special session on Wednesday 9 September, that put youth engagement in the spotlight. On the final day of the Congress, passionate youth advocates took to the stage, alongside researchers and healthcare professionals, to deliver a key message that young voices can drive positive change in healthcare.
Iowa’s Rural Mainstreet Index decreases, farm prices increase in September
Iowa’s Rural Mainstreet Index decreased to 44.6 from 46.2 in August, according to a monthly survey of rural bank CEOs. The state’s farm and ranchland price index increased to 50 from 44.2 since last month. The Rural Mainstreet Index covers 10 regional states and rural communities, providing the most current real-time analysis of the rural…
Angle Health raises $600M, including $400M secondary
Angle's platform is designed to steer members toward less expensive care settings.
Ahead of Roma vs. Inter; Nerazzurri's training session
It's the day before Roma vs. Inter on Serie A matchday 5. The Nerazzurri take on the Giallorossi at the Olimpico at 18:00 CEST on Saturday, 19 September. Before travelling to the capital, the Nerazzur...
Engrams Embedding Entendre: Codesign for Efficient DRAM/SSD Offloading
Engram extends standard token embeddings with learned multi-token lookups. Recurring local patterns retrieve vectors directly, reducing the need to reconstruct them through attention and feed-forward layers. With Engram model architecture optimization, it allows for lower HBM capacity to be needed for models at the same quality. This does not mean there won’t be an insane demand for HBM but it just means that model architecture will continue to innovate around constraints. This model architecture design is naturally codesigned for parameter offloading: each token accesses a few embedding rows whose addresses depend on token IDs, not hidden states. The runtime can prefetch those rows from host DRAM while earlier layers compute, keeping the table outside HBM without transferring entire weight matrices. Our Memory model contains our latest estimates of quarter by quarter HBM, DRAM, & NAND supply and demand. Offloading frees HBM for model weights and KV cache, potentially supporting larger batches or more concurrent sessions. When DRAM becomes the next constraint, NVMe offers another tier. Recommendation systems already cache frequently or recently accessed embedding rows in faster memory while backing colder rows with SSDs. After NVIDIA roadmap had to change due to massively despec’ing Rubin Ultra from 1024GB to now ~200GB of HBM per chip, model architecture optimizations like emgram maybe helpful. Our DeepSeek-V4.1-Flash configuration uses roughly 189 GiB of memory for Engram. We replace it with a memory-mapped (mmap) file and measure serving performance with offload to SSD. Later on in our report, we will show our Engram offloading experiments along with the official InferenceX agentic inference serving results on Engram models like DeepSeekv4.1 Flash across all 6 NVIDIA GPU SKUs along with MI355X. Unsurprisingly, the CUDA Moat is still mogging MI355X on the ultra popular DeepSeekV4.1 Flash model. We also show how even on high capacity HBM SKUs, offloading emgrams to DRAM could result in even better performance for most of the pareto than keeping the emgram in HBM. Our benchmark has been widely reproduced, validated and/or supported by almost every major buyer of compute from Google Cloud to Microsoft Azure to Oracle, to Meta and many more. Furthermore, it has the support of the ML community including from vLLM, LMCache, SGLang, PyTorch, Huggingface and the support of major labs like OpenAI, MiniMax, ZAI, Qwen, Moonshot Kimi, etc. Star the InferenceX GitHub repository if you find the open-source benchmark and data useful!. InferenceX is the only inference benchmark in the world to have TPUv7, Jalapeño, Nvidia Rubin NVL72, AMD, and soon, SambaNova and Trainium. Due to how realistic AgentX scenario is to real world agentic inference workloads, AMD has committed to collaborating on MI455X UALoE72 too. DeepSeek did not release the original paper’s two trained Engram models. We replicated its setup on fineweb-edu using the released code and training hyperparameters, at an estimated 6E18 FLOPs per run. We observed the same U-shape scaling: Engram improved performance over pure MoE baselines. We also reproduced DeepSeek’s results, where earlier-layer representations with Engram resembled those of later layers. Like the original Engram paper, it is possible to probe Engram’s gate scores to see what n-grams DeepSeek-V4.1-Flash makes the most use of. Our gate scan finds names, code fragments, relational phrasing, and boilerplate. These examples prioritize interesting-ness over gate strength. One unexpected result was Wright : Ace Attorney. These examples suggest learned memory optimizes the training objective, not a judgment of which facts deserve storage. Licenses, bibliography fragments, API scaffolding, and website furniture can provide prediction shortcuts, so the value of additional Engram capacity may depend on what survives data preparation. This does not show that table capacity is “wasted”: the evaluation-corpus scan establishes neither training exposure nor the capacity occupied by each category. For offloading, strong gates do not identify cache-hot rows. Low gates do not automatically save reads either: computing the gate requires the retrieved key and undoes the performance gain of a fused kernel. Skipping reads would require a separate usefulness predictor before retrieval. In the original paper’s inference-time ablation, factual-knowledge benchmarks retained just 29–44% of their original performance, while reading comprehension retained 81–93%. This is due to the training–inference mismatch. The resulting degradation therefore measures this trained model’s dependence on Engram, not the performance difference between models trained with and without it. In our ablations, suppressing Engram worsens token likelihood across all evaluated domains, especially encyclopedia text and several code corpora. Surprisingly, GSM8K accuracy stays within measured run-to-run variation and removing Engram has no effect. Engram is not a detachable dictionary beside an unchanged MoE. Removing it changes downstream features and expert selection. We tested whether rerouting hurts or compensates by holding tokens fixed in a teacher-forced experiment on CRUXEval, a code-reasoning benchmark of small Python functions where the model predicts a function’s output from its code and an input, and scoring the reference answer. Removing Engram raised answer loss from 0.2848 to 0.3093 bits/token. Forcing the ablated model to use the original Engram-on expert choices made it worse still, at 0.3375 bits/token. Rerouting partially compensates for the missing memory. Memory features and expert selection work together, rather than following a clean “memory stores facts; experts reason” division. On the same CRUXeval, removing Engram during either phase reduced accuracy and increased generated tokens; removing it throughout produced the largest changes. Keeping Engram for prefill leads to more correct answers than keeping for decode likely due to semantically richer KV cache transferred to decode workers, allowing it to mitigate some of the performance loss. Engram’s table is large, but each lookup is small. DeepSeek-V4.1-Flash requests 24 rows at each of two Engram layers, about 12.4 KiB per processed token position across the model, or 3.1 KiB per GPU when split across four GPUs. Currently as of Day 7 since Model Release, MI355X is still 2-4x worse performance per dollar compared to B200 even when normalized by Mi355X’s lower TCO. Our full total cost of ownership breakdown comes from our AI Cloud TCO Model along with monthly market surveys of over 100+ gpu clouds & gpu cloud customers. On the Day 0 release of DeepSeekv4.1 Flash, NVIDIA vLLM works out of the box with zero issues across all 6 SKUs: H100, H200, B200, B300, GB200, GB300! This was thanks to the amazing work by the NVIDIA & Interact teams! In comparison, AMD vLLM did not work on day 0 for DeepSeekv4.1 Flash.Source: SemiAnalysis InferenceX AMD’s vLLM documentation points to using vllm/vllm-openai-rocm:deepseekv41-flash-0909, but from hour 0 of the model release to hour 23, AMD has not publicly released the image. AMD claims, “SPEED IS THE MOAT,” yet it has still not released it by the 23rd hour. We wish that, going forward, the AMD team has a better process for hour 0 model releases. Eventually when they did publicly release for “day 0” image support, performance-wise, it is currently up to 14.8x worse perf per dollar than H200 and up to 42x worse perf per dollar than B200/B300. The power of the CUDA MOAT is NVIDIA’s collaboration with its massive 6 million-developer community ecosystem including most of the vLLM & SGLang & Tokenspeed maintainers which means that CUDA is optimized on day 0. Overall, AMD did make significant improvements but the performance per dollar is still currently 2-4x worse than B200. AgentX Engram DRAM Offloading Improving Performance The HBM and DRAM offload use the same GPU kernel to select and dequantize rows. With HBM, it reads GPU memory; with Unified Virtual Addressing (UVA), it reads pinned host memory directly. Both support full decode graphs. Moving the table into HBM accelerates only the sparse lookup, leaving decoder computation and communication unchanged, resulting in little overall benefit while consuming memory otherwise available to KV cache. Another benefit of Engram offloaded to DRAM which means you can reduce the communication overhead by using less HBM GPUs per replica. For example, when enabling Engram offloading on B300, we are able to switch from TP4 to now TP2 which improves the pareto curve by up to 1.6x. When iso-model quality, less HBM is required as the engrams could be offloaded to host DRAM. Thus HBM bandwidth matters way more than HBM capacity. For inference workloads where memory bandwidth matters the most, 4-hi HBM provides the best $/bandwidth and therefore lowest cost per token. If China continues to make more and more revolutionary model architecture innovations, soon it could potentially 0Hi HBM stacks. [ ](https://newsletter.semianalysis.com/p/long-live-the-short-king-why-4-hi) [ Long Live the Short King: Why 4-hi HBM Wins ](https://newsletter.semianalysis.com/p/long-live-the-short-king-why-4-hi) Myron Xie, Bryan Shan, and 3 others · Sep 13 [ Read full story ](https://newsletter.semianalysis.com/p/long-live-the-short-king-why-4-hi) Moreover, on B300 and week-0 stack, moving the Engram table back to HBM did not improve results and stay within run-to-run variance. This is a result of the work optimizing DRAM offload, such as async, and overlap. SSD Offloading On B200, we created a unoptimized vLLM fork and stored the Engram tables in memory-mapped files on local SSDs. File backing lets the OS reclaim table pages when other applications need RAM. Pages already cached in memory can be served without reading the SSD again. Furthermore, note that we were unable to turn on GDS The unoptimized SSD implementation changes how rows reach the GPU. It copies row IDs to the CPU, deduplicates them, gathers the requested rows into pinned buffers, copies those rows back to the GPU and dequantizes them. This work runs between segments of the GPU execution graph. Native UVA performs row selection and dequantization directly on the GPU, avoiding the CPU round trip. A warm filesystem cache removes physical SSD reads, but leaves the coordination, row gathering and transfers. This is why a file already cached in RAM can still perform worse than a pinned DRAM table. The comparison measures the whole serving path; it does not separate the time spent on each of these operations. B200 DRAM dominates both measured SSD serving curves in total tokens per dollar and P90 interactivity. Near 125 tokens/s/user, DRAM delivers 121 million total tokens per dollar versus 52 million for SSD. For production serving, SSD offloading is likely not worth the tradeoff. On the B200 configurations we measured, SSD offloading loses on both measures: every observed SSD point has a DRAM alternative that delivers higher P90 interactivity and more total tokens per dollar. The only points where Cheaper storage does not automatically produce a cheaper inference service. Moving Engram to SSD leaves the same four expensive GPUs and the rest of the server in place. Reclaiming RAM only creates an economic benefit if it enables a cheaper server configuration or additional useful capacity. The current unoptimized path provides neither benefit, and the filesystem cache still consumes RAM when table pages are resident. Next we will look at the mechanisms and specific implementation of ngrams from DeepSeekv4.1 Flash, LongCat, Qwen3.8 Flash Next.
Democratic Senators Reintroduce the Health Infrastructure Security and Accountability Act
On September 17, 2026, two Democratic Senators reintroduced the Health Infrastructure Security and Accountability Act, which seeks to improve A pair of Democratic Senators reintroduced the Health Infrastructure Security and Accountability Act, which seeks to increase healthcare cybersecurity standards. The bill calls for $1.3 billion in government investment to help healthcare organizations adopt the essential and enhanced HHS cybersecurity goals, including $800 million for rural and underserved hospitals.
200 Bechtel jobs in Reston affected by TerraPower split
Bechtel notified Virginia officials that approximately 200 Reston employees could be affected by staffing reductions beginning in November.
10 New Electronics At Best Buy To Look Out For In September 2026
Those looking to upgrade their repertoire of tech accessories have a lot to choose from this September, whether you're an audio or photography enthusiast.
Next Week on XBOX: New Games for September 21 to 25
Welcome to Next Week on XBOX! In this weekly feature we cover all the games coming soon to XBOX Series X|S, XBOX One, XBOX on PC, and Game Pass! Get more details on these upcoming games below and click their profiles for further info (release dates subject to change). Let’s jump in!
Duncan Sheik, Tony Award-winning composer, dies at 56
Duncan Sheik attends 'The Broadway Legacy Foundation Launch' at the Broadway Museum on November 11, 2025 in New York City. (Santiago Felipe/Getty Images)Duncan Sheik, the Tony Award-winning composer behind Spring Awakening and more, has died, according to his Instagram. He was 56.The Friday morning Instagram post said the "father, husband, son, brother, and friend" died on Thursday night "surrounded by love."A message shared on Sheik's Instagram earlier this week by his family said he was "receiving medical care" and was "in critical but stable condition.""The world has a lost a singular talent, and deeply influential voice in music and theater," Friday's statement said. "From his Grammy-nominated hit “Barely Breathing” to his groundbreaking, Tony and Grammy Award-winning work on Spring Awakening, Duncan’s artistry touched many and leaves an indelible mark on the cultural landscape."Born on Nov. 18, 1969, in Montclair, New Jersey, Sheik rose to fame in 1996 when he released his self-titled debut album, which included his hit song, "Barely Breathing."The song peaked at No. 16 on the Billboard Hot 100 chart and earned him a Grammy nomination for best male pop vocal performance.Following his debut album, he released Humming in 1998, Phantom Moon in 2001 and Daylight in 2002.While "Barely Breathing" established Sheik as a singer-songwriter, his career later expanded into musical theater, where he found success as a composer.Sheik collaborated with lyricist Steven Sater and composed the music for Spring Awakening, which opened on Broadway in 2006.He told Broadcast Music, Inc. in 2015 that around the time he was making the music for Spring Awakening, he wasn't "a huge fan" of music that was happening on Broadway and he wanted to make the music for an audience "beyond the normal crowd that would go to a Broadway musical."The rock musical, based on Frank Wedekind's 1891 play and starring Jonathan Groff, Lea Michele, John Gallagher and Skylar Astin, became a major success. It won eight Tony Awards in 2007, including best musical, best original score and best orchestrations.He went on to compose music for several other stage productions, including American Psycho and Because of Winn-Dixie. He also collaborated with Sater again on Alice by Heart and The Secret Life of Bees.In his interview with Broadcast Music, Inc., he added that working on musical theater has "helped broaden my palette."Sheik went on to release several more albums throughout his career, including White Limousine, Whisper House, Covers 80s, Legerdemain and Claptrap.In May, it was announced that Sheik's new musical, Memoirs of Amorous Gentlemen, would make its off-Broadway debut this fall. The musical is based on Moyoco Anno's manga graphic novel of the same name.An off-Broadway revival of Spring Awakening is also set to open this fall. Copyright © 2026, ABC Audio. All rights reserved.
PAHO strengthens regional dialogue to prevent and respond to violence against health workers
Washington, D.C., September 18, 2026 (PAHO) – The Pan American Health Organization (PAHO) brought together about 400 participants from 34 countries in the Region for a virtual seminar to analyze the challenges posed by violence against health workers and promote comprehensive responses for its prevention and management. Additionally, a new factsheet titled Preventing violence against health workers in the Region of the Americas was presented.