Which futurists predicted that humans could live a thousand years or more?

• A. Elon Musk
• B. Michio Kaku
• C. Ray Kurzweil and Ian Pearson
• D. Carl Sagan

Answer: (C)

Radical life extension is the idea that advances in biology and technology could push human lifespans well beyond today’s norms, potentially to a thousand years or more. Ray Kurzweil and Ian Pearson are the futurists most associated with this specific prediction. Kurzweil argues that exponential progress in biotechnology, regenerative medicine, nanotechnology, and related fields could dramatically extend life, with visions of centuries-long lifespans as technology improves. Pearson has written explicitly about the possibility of a 1000-year life, exploring how future medical and digital technologies could refresh the body and mind over many centuries. That focus is why this pair is recognized for predicting a thousand-year lifespan.

Elon Musk is known for SpaceX, Neuralink, and other transformative projects, but not for a formal prediction of thousand-year lifespans. Michio Kaku discusses future technologies broadly, including longevity, but without the firm claim of living a millennium. Carl Sagan emphasized science communication and space exploration rather than making a specific longevity forecast.