A 2026 arXiv paper by Levchenko, Avvakumova, and Smorodnikova demonstrates something quietly devastating: passive wearable data can track a state-level material-hardship gradient through resting heart rate alone. The poorer your state, the higher your average resting heart rate. Stress is no longer metaphorical. It is biometric, continuous, and now legible at population scale. Read next to The Atlantic's investigation into rural maternal mortality, the picture that emerges is of a healthcare system generating increasingly precise data about suffering while simultaneously reducing its capacity to treat it.
Precision Measurement in an Era of Imprecise Care
The Atlantic piece is direct: care will be in shorter supply, travel distances will stretch farther, and high-risk situations will more likely result in tragedy. Rural hospital closures and the Medicaid funding cuts driving them are not an data problem. There is no shortage of evidence that the system is failing. The wearable paper adds a haunting layer: we will soon have real-time biometric proof of exactly how much stress each funding cut generates, tracked passively on the wrists of the people most affected, aggregated into dashboards that no one with power to act on them is required to read. The Relins and Birks paper on AI governance in public services frames this as a structural failure mode: AI and data infrastructure scale faster than the public services that should use them, creating a gap between measurement and intervention that can actually make accountability harder, not easier. You can always add another metric. You cannot always add another hospital.
The Serena Williams Problem
Serena Williams is now hunting for the next trillion-dollar company as a venture investor, applying her competitive mindset to healthtech among other sectors. The health data economy is, to put it plainly, a thriving investment category built on top of a deteriorating public health infrastructure. Williams' fund may well back the next great wearable or telehealth platform. The resting heart rates of rural Americans will keep rising in the background, measured and unaddressed. Eugenia Kuyda's framing of personal software as something that should shape you rather than extract from you applies here: a wearable that harvests your stress signal for an investor deck has shaped itself around you, not for you.