Multiverse Understanding of Cosmological Coincidences

@article{Bousso2009MultiverseUO,
  title={Multiverse Understanding of Cosmological Coincidences},
  author={Raphael Bousso and Lawrence J. Hall and Yasunori Nomura},
  journal={Physical Review D},
  year={2009},
  volume={80},
  pages={063510}
}
There is a deep cosmological mystery: although dependent on very different underlying physics, the time scales of structure formation, of galaxy cooling (both radiatively and against the CMB), and of vacuum domination do not differ by many orders of magnitude, but are all comparable to the present age of the universe. By scanning four landscape parameters simultaneously, we show that this quadruple coincidence is resolved. We assume only that the statistical distribution of parameter values in… 
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