A death clock gave one reporter more worry, not proof

What the source reports

WIRED reporter Jason Parham recounts trying a consumer app that estimates how long he might live. The estimate shifted when he changed questionnaire answers. He also paid for a blood test and spoke with people about the limits and effects of such predictions. He describes more anxiety and prompts for further medical follow-up, not a demonstrated gain in health. His account is a first-person report, not a test across a group of patients. It cannot establish whether the app helps or harms people in general. The question his experience leaves is whether a prediction offers a useful next step before someone shares sensitive health data.