The ultimate fate of life in universes which undergo inflation

Details The ultimate fate of life in universes which undergo inflation The ultimate fate of life in universes which undergo inflation

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phlb..286...36t&link_type=abstract

Physics Letters B, Volume 286, Issue 1-2, p. 36-43.

Physics

5

Scientific paper

It is shown that life - in its most general sense as an entity which codes information that is preserved by natural selection - cannot continue forever in any of the standard inflationary models. In these cosmologies, the continuation of life is ultimately stopped by the Eternal Return Problem: the complexity of a living entity, or more generally the entire bioshpere, is bounded above, and once this upper bound is reached, life either dies out, or begins to repeat its previous states. I argue that this need not happen in a closed universe, because if the Wheeler boundary condition is imposed on the universal wave function, quantum gravity will permit life to increase its complexity without limit below the Planck length as the universe goes into the final singularity.
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