Populating the landscape: A Top down approach

@article{Hawking2006PopulatingTL,
  title={Populating the landscape: A Top down approach},
  author={Stephen William Hawking and Thomas Hertog},
  journal={Physical Review D},
  year={2006},
  volume={73},
  pages={123527}
}
We put forward a framework for cosmology that combines the string landscape with no boundary initial conditions. In this framework, amplitudes for alternative histories for the universe are calculated with final boundary conditions only. This leads to a top down approach to cosmology, in which the histories of the universe depend on the precise question asked. We study the observational consequences of no boundary initial conditions on the landscape, and outline a scheme to test the theory… 
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