1 research outputs found
Susskind's Challenge to the Hartle-Hawking No-Boundary Proposal and Possible Resolutions
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 this argument and consider possible
resolutions, one of which seems to imply that inflation expands the universe to
be larger than 10^{10^{10^{122}}} Mpc.Comment: 24 pages, LaTeX, 8 references added and a distinction between Linde's
and Vilenkin's tunneling proposal