Noted cosmologist Paul Davies speculates that the universe's bio-friendly physical constants may have arisen because of quantum resolutions in the later, current universe. Sort of a feedback loop wherein previously unresolved initial universe quantum states are 'observed' and cohere to physical constants amicable to life.

"There are three popular responses to the fact that the universe does seem to be weirdly fine-tuned for life. And I think all three are found wanting.

The three are the intelligent-design argument; the idea that if we had a final theory of physics, then all of the undetermined parameters in the laws would be fixed by that theory; and the third is the multiverse – the notion that there is a multiplicity of universes, with laws that vary from one to the other.

I think all three of these explanations are found wanting – and I have my own preferred view, which is that the universe has engineering its own bio-friendliness through a sort of feedback loop that operates in both directions in time.