Eric Topol

TLDR of my Strong Epigenetic Theory of programmed aging: across biology, lifespan looks less like a fixed thermodynamic constraint and more like a control system with buttons: •Stop: some organisms execute a timed, endocrine-driven post-reproductive die-off •Slow: same genome but different life-history mode resulting in huge lifespan differences (e.g. caste transitions) •Pause: states where “time stands still” (developmental arrest/diapause) •Rewind: a true “Benjamin Button” mode in which organisms can reverse parts of their life history and become biologically younger My claim is that mammals run the slow version: a centrally coordinated, post-maturation retuning of maintenance setpoints. A few concrete hypotheses I argue for: 1.Aging begins at puberty (when mortality stops declining and starts rising). Puberty is the species-typical switch that flips growth/reproduction and, I think, maintenance policy. 2.The hypothalamus–pituitary axis is a plausible master tempo-setter of aging, because it already governs long-horizon state transitions (puberty, reproductive cessation, seasonal programs). 3.The epigenome is the writable operating system that turns transient endocrine signals into durable cellular state. Ultimately, the buck stops at the cell, where aging is executed as coordinated gene expression programs — and where partial reprogramming provides a real reset lever. If you disagree, what observations would falsify this model?