What price immortality? Hal Finney, a computer scientist and early bitcoin user, placed his bets on cryonics: his body is preserved at Alcor Life Extension Foundation in Arizona. Tech billionaire Bryan Johnson has availed himself of his son’s youthful blood.
The multibillion-dollar longevity industry, a coven of snake oil merchants, biohackers and geniuses, is tricky to quantify. Estimates vary hugely, depending whether you include disease-specific or other therapies. But the roll-call of backers — and users — reads like a 21st century who’s who of Silicon Valley.
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