Oura Ring Gave Users Fake Bad Scores — and They Actually Felt Worse

Source: a16z | Published: 2026-09-15T14:30:36Z

Researchers showed Oura Ring users falsely poor sleep scores, and those users reported worse physical wellbeing that day — even though their actual sleep data was perfectly fine.

That number isn't surprising on its own. What's interesting is what happens when you stack it against a few others: 95% of Americans know about crypto, 14% actually hold it; VR and meal-kit subscriptions follow roughly the same pattern. What you're looking at isn't a single product's failure to convert — it's a structural law. We live in an era where awareness vastly outpaces behavior. Every few years, something becomes universally discussed. But the people who actually let it change their daily lives are always a small minority.

The "origin story" is usually written in retrospect

Internet culture researcher Ruby Justice Thelot made a sharp observation on the show: Silicon Valley frequently claims credit for cultural trends that actually started somewhere else entirely.

Peptides are a perfect example. If you first started hearing about them in San Francisco in 2024, you'd probably assume they spread out of some SoMa dinner party. But Ruby ran the numbers — he analyzed around 960 TikTok videos posted between 2024 and 2026 — and the picture was clear: early peptide adopters were primarily in the bodybuilding community, and the real origin was the Midwest. Aesthetic clinics in Texas. Gyms in Kansas. Another host recalled hearing about peptides for the first time in Austin, at a medspa a friend dragged him to — the kind that uses Chinese peptides.

This wasn't a Silicon Valley export. Silicon Valley took something that already existed and professionalized it — gave it better branding, wrapped it in a better narrative, and amplified it through founder and investor social networks.

The history of thinness starts with British colonial sugar

Ruby brought a genuinely obscure historical hook to the conversation.

The modern aesthetic of thinness traces back to 17th-century England. Britain's large-scale sugarcane cultivation in Barbados drove supply up and prices down, making sugar a staple for ordinary people. With it came a disease that had previously been the exclusive province of aristocrats: gout. In 1620, a physician named Venner became the first to use the Latin word obesus to describe excessive fatness, and proposed the first weight-loss interventions aimed at the middle class.

From that point on, "temperance" became an outward signal of virtue. From Descartes to Pope, philosophers and poets framed control over appetite as evidence of intellectual capacity. The Victorian corset was the physical manifestation of that value system. There's even a line in Julius Caesar where Caesar says he wants fat men around him, because they're too dull to be a threat.

This narrative loosened for a moment in the mid-20th century. After World War II, in the postwar baby boom, people who had lived through scarcity and famine briefly reclaimed fullness as a symbol of health. Rubens' Venus made a short return to the aesthetic center.

Then came the 1990s. European haute couture began dominating North American taste, supermodels took the stage, and "heroin chic" entered the fashion lexicon. Thinness as an ideal came roaring back, harder than before.

"What we see is that standards around thinness oscillate with economic conditions," Ruby said. "And right now, that pendulum is being pushed in one direction by technological tools like GLP-1."

Ruby drew a historical parallel: the corset went from an aristocratic luxury to a mass-market product in two steps — factory production drove costs down, and a redesigned fastening system meant you no longer needed a lady's maid to put it on. GLP-1's trajectory is strikingly similar: prices are falling, delivery is shifting from injections toward oral pills, and the barrier to entry keeps dropping.

The quantified self took 20 years to go mainstream

Fitbit launched in 2009. Around the same time — 2007 — Kevin Kelly and Gary Wolf coined "quantified self" in Wired: track your body with data, manage your health with dashboards.

Ruby referenced scholar Toby Shorin's concept of "Body Futurism": once we hit diminishing returns on innovation in silicon, we turn the microscope on ourselves and start optimizing and reengineering the body.

That prediction took nearly 20 years to fully materialize. From Fitbit to Apple Watch (2015) to now — Oura Ring, continuous glucose monitors (CGMs), DEXA scans, comprehensive health testing platforms like Function Health — quantified self has migrated from a Silicon Valley nerd hobby to a genuine daily practice for a large and growing cohort of urban knowledge workers. The show noted that plenty of people are now buying CGMs originally designed for diabetics, purely to figure out which foods spike their glucose.

But the side effects of quantification are starting to show. Ruby mentioned a new study where researchers fed Oura Ring wearers falsified sleep scores — told them they'd slept terribly. That day, the participants genuinely reported feeling worse, even though their actual sleep data was completely normal.

The device's numbers are shaping subjective experience — and sometimes actively causing harm.

Microplastics: the next Silicon Valley self-testing movement

One more thing the hosts felt deserved its own moment.

A project co-funded by Nat Friedman and other tech figures systematically tested microplastic levels in a range of commercial food and takeout products — Whole Foods packaged meals, bubble tea, protein bars — commissioning Light Labs in Austin, Texas to run the tests, with all results published openly. A mother who saw the baby food data then started independently testing infant formula and baby food products.

Medical consensus on whether microplastics are actually harmful remains unsettled. But in the Bay Area, a meaningful number of smart people have already decided they are — and started acting accordingly. On Whole Foods shelves, glass bottles have quietly displaced plastic ones. Both guests on the show mentioned, in passing, that their homes and offices have been plastic-bottle-free for years.

This type of trend follows a familiar script: a small group raises concern, runs tests, open-sources the data; then certification systems and aggregation platforms emerge, similar to the organic food certification wave before it; then it starts influencing product packaging and marketing. The hosts' read: microplastics, seed oils, and the Ray Peat diet are all still early on that curve — but the direction is already legible.

Protein: a textbook case of trend saturation

The protein content never changed. But suddenly the number on the yogurt package is printed enormous.

That's what the hosts flagged as a telling signal: when a health concept fully goes mainstream, brands start putting the ingredient that was already there in giant bold type — the formula didn't change, consumer attention did, and brands are just following it.

Protein has cycled through several eras. Atkins, keto, now the "one gram per pound of bodyweight" gospel — the packaging changes every few years. But there's already a backlash forming. People are developing "protein fatigue" — they don't want another protein water, don't want to see another "20g per serving" label; they just want a normal drink.

That kind of reversal is itself a signal that you've hit the peak.

The next frontier is sleep — but not for sleeping better

Before the show wrapped, the host floated a specific prediction: the next major body optimization category is sleep.

Not sleeping better — sleeping less for equivalent effect. He mentioned conversations with hardware founders building wearables aimed at delivering the restorative equivalent of a full night's sleep in four hours. The goal isn't longevity. It's reclaiming a few extra waking hours every day.

Ruby's closing take was broader: in an era of AI-driven abundance, where automation may absorb large swaths of external work, the one remaining domain with continuous room for improvement might be the body itself. "The next few years, that's where attention is going to concentrate."

Both agreed this won't be a uniform optimization movement — not everyone marching toward the same version of thinner, healthier, or better-looking. The more likely outcome is a bifurcation: quantification and mysticism growing simultaneously, Reiki and CGMs appearing on the same person's calendar; extreme optimizers going down increasingly niche paths; and the mainstream absorbing new trends faster and faster, generating faster backlash, then cycling on to the next belief system.