Clockwise from top left: 'Hammer and Silicon' authors Daniel Satinsky, Sheila Puffer, and Daniel McCarthy (Courtesy Sheila Puffer); scientist Slava Epstein (Adam Glanzman/ Northeastern University); Vladimir Torchilin, director of pharmaceutical biotechnology and nanomedicine at Northeastern University; anti-aging researcher at Harvard, Vadim Gladyshev (YouTube screenshot).
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