Silicon Valley’s Immortality Bet: Billionaires Back Longevity Startups

A handful of tech billionaires are pouring money into longevity startups—Retro Biosciences, NewLimit, Altos Labs and others—hoping to develop therapies that could slow or reverse aging, with Sam Altman, Brian Armstrong and Jeff Bezos leading the charge and smaller players like Mitrix Bio racing to bring treatments to patients sooner.