Into the Impossible With Brian Keating

End of Inflation Theory? Neil Turok’s Bold New Mirror Universe Hypothesis Explained [Ep. 480]

Feb 24, 2025
In this thought-provoking discussion, renowned physicist Neil Turok from the University of Edinburgh introduces his radical mirror universe hypothesis, proposing a simpler cosmological model without inflation. Turok explores how a mirror universe could explain dark matter and cosmic flatness while revisiting the notions of symmetries, particularly CPT symmetry. He challenges traditional cosmological theories, examining the implications of time travel and the intricate relationship between neutrinos and dark matter density, inviting us to rethink our understanding of the universe.
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ADVICE

Science Communication

  • Scientists should make research outputs freely available and avoid disdain for the public.
  • They should also acknowledge the validity of public concerns regarding legislation’s impact.
INSIGHT

Reverse Time

  • Going backward in time may be possible, as particles like positrons act as if they travel backward.
  • The universe might be symmetrical, with matter on one side and antimatter on the other.
INSIGHT

Symmetry vs. Broken Symmetry

  • Broken symmetries are essential for our existence, as perfect symmetry would preclude it.
  • The universe’s large-scale structure displays high symmetry, with deviations appearing as random noise.
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