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Ray Kurzweil

Futurist, author
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Longevity
Last updated: 7 October 2026

At a glance

  • Ray Kurzweil is an American computer scientist, inventor, entrepreneur and futurist. He worked on optical character recognition (OCR), text-to-speech, speech recognition and electronic keyboards, and received the National Medal of Technology in 1999.
  • Since 2012 he has worked at Google on language and artificial intelligence.
  • In The Singularity Is Near (2005) and The Singularity Is Nearer (2024) he predicts that technology, AI and biotech will accelerate so fast that humans and machines merge.
  • With physician Terry Grossman he wrote health books such as Fantastic Voyage (2004) and Transcend (2009), built on the idea of ‘bridges’ to ever better technology to live longer.
  • He is one of the best-known voices of transhumanism and talks about ‘longevity escape velocity’: the point where life expectancy rises faster than time passes.
  • For longevity, he is influential mainly as a thinker about the future, less as a source of proven health advice.
  • Takeaway: read his work as an inspiring vision of the future, but base daily choices on what works in human studies.

Criticism and nuance

Speculative predictions, megadoses of supplements

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