Susskind’s challenge to the Hartle–Hawking no-boundary proposal and possible resolutions

  title={Susskind’s challenge to the Hartle–Hawking no-boundary proposal and possible resolutions},
  author={Don N Page},
  journal={Journal of Cosmology and Astroparticle Physics},
  pages={004 - 004}
  • D. Page
  • Published 18 October 2006
  • Physics
  • Journal of Cosmology and Astroparticle Physics
Given the observed cosmic acceleration, Leonard Susskind has presented the following argument against the Hartle–Hawking no-boundary proposal for the quantum state of the universe: it should most likely lead to a nearly empty large de Sitter universe, rather than to early rapid inflation. Even if one adds the condition of observers, they are most likely to form by quantum fluctuations in de Sitter and therefore not see the structure that we observe. Here I present my own amplified version of… 
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