Or maybe the Planck mass changes over time, as suggested by Chrisof Wetterich recently and only recently reached a level where life or intelligence suddenly became possible everywhere in the galaxy?
I don’t think this model would help, since it’s designed to explain away the Big Bang and is claimed to be compatible with all present observations (and so is equivalent to the standard Lambda-CDM cosmology at the late times).
I don’t think this model would help, since it’s designed to explain away the Big Bang and is claimed to be compatible with all present observations (and so is equivalent to the standard Lambda-CDM cosmology at the late times).