And maybe less than we think ...

... Cosmologists Try to Explain a Universe Springing From Nothing - NYTimes.com.

There is a deeper nothing in which even the laws of physics are absent. Where do the laws come from? Are they born with the universe, or is the universe born in accordance with them? Here Dr. Krauss, unhappily in my view, resorts to the newest and most controversial toy in the cosmologist’s toolbox: the multiverse, a nearly infinite assemblage of universes, each with its own randomly determined rules, particles and forces, that represent solutions to the basic equations of string theory — the alleged theory of everything, or perhaps, as wags say, anything. 

Within this landscape of possibilities, almost anything goes.

And that, of course, is the problem.