The Lifespan in Your Swim: Can Your Fitbit Predict How Long You'll Live?

This episode explores how future smart devices could generate a "longevity score" based on micro-behaviors, drawing parallels to groundbreaking research on African turquoise killifish. Listeners will learn how scientists used machine learning to identify subtle behavioral patterns ("behavioral syllables") in fish to accurately predict their remaining lifespan. The discussion also reveals a surprising "staged architecture" of aging, suggesting that decline occurs in abrupt transitions rather than a gradual process, with profound implications for human health and technology.