The Quantified Self: Gary Wolf on What AI Can Actually Tell You About Your Data

This year, OpenAI started letting people connect their medical records and Apple Health data to ChatGPT. Since 2024, Americans can buy a continuous glucose monitor without a prescription. For most of the Quantified Self movement's history, answering a question with your own data meant manual logs and spreadsheets. Today a sensor collects the data and an AI model analyzes it on demand. That leaves every founder building in this space with one hard question: when an AI's answer changes what someon