Perhaps the most important thing I could say (I've said it before, but not very often) is that there
are and
always have been people who know the secrets of Creation. This knowledge is not from scientific research but Divine Revelation--however, it is esoteric and "may not be expounded before more than two people." These are the
only people who know (as much as flesh and blood can) what actually happened, and they are
not going to tell the world.
I believe Rabbi 'Eliyashev, the Gedol HaDor (and perhaps even Nesi' of Israel in this generation) has received this knowledge.