How To Academy Podcast

Paul Davies - The New Quantum Revolution

Jan 9, 2026
Paul Davies, a theoretical physicist, cosmologist, and astrobiologist, explores the second quantum revolution and its implications. He discusses why quantum theory remains puzzling despite its success, contrasting practical applications with unresolved foundational issues. Davies delves into wave-particle duality, entanglement, and how quantum fluctuations influenced the universe's early structure. He even speculates on the potential of quantum AI and its impact on self-identity and biology, advocating for rigorous mathematics to combat pseudoscientific interpretations.
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INSIGHT

Success Without Understanding

  • Quantum mechanics is extraordinarily successful at prediction yet remains philosophically unresolved about what reality it describes.
  • Practical mastery relies on mathematics, not intuitive picturing, so devices work despite foundational mystery.
ADVICE

Shut Up And Calculate

  • Don't insist on intuitive pictures to use quantum theory; learn the mathematics instead.
  • Apply equations to get reliable predictions and build functioning technology despite strangeness.
ANECDOTE

Bell's Theorem Changed Everything

  • John Bell's theorem led to definitive experiments in the 1980s that favored Bohr over Einstein.
  • That shift turned entanglement from a philosophical oddity into practical quantum technology.
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