The recent developments in cosmology strongly suggest that the universe may be the ultimate free lunch.
Alan GuthItโs hard to build models of inflation that don't lead to a multiverse. Itโs not impossible, so I think thereโs still certainly research that needs to be done. But most models of inflation do lead to a multiverse, and evidence for inflation will be pushing us in the direction of taking [the idea of a] multiverse seriously.
Alan GuthDespite its name, the big bang theory is not really a theory of a bang at all. It is really only a theory of the aftermath of a bang.
Alan GuthThe Big Bang theory says nothing about what banged, why it banged, or what happened before it banged.
Alan Guth