The Peter McCormack Show
#199 - Aubrey de Grey - The Man Who Says Ageing Can Be Cured
- Aging is accumulated damage in a biological machine, not an inevitable mystery—the body's self-repair systems are imperfect but can be engineered to repair damage faster than it accumulates.
- Seven categories of damage drive aging: stem cell depletion, mitochondrial dysfunction, cellular senescence, extracellular matrix stiffness, waste product accumulation, telomere shortening, and epigenetic changes.
- De Grey assigns a **50/50 chance** of reaching "longevity escape velocity" (practical defeat of aging) within **12–15 years**, though timeframes slip; most experts avoid such predictions due to fear of losing funding credibility.
- Rejuvenation will likely involve multiple gene therapies and cell therapies delivered as injections rather than pills; early treatments may include surgery, but injectable approaches will dominate.
- Population, fertility, social care, and meaning will adapt as aging is solved; death remains distinct from aging and cannot be eliminated by medicine, though accidents and aging-related disease can be nearly eliminated.
- Funding is the critical bottleneck: early-stage mouse research (the hardest to fund) requires only $5–10 million per large experiment, yet most billionaires decline to invest, citing religious concerns, pessimism about timelines, or competing bets on AI.