So you want to find that special thing that replicates best and lasts longest? Just vibrate a bunch of molecules a long time!
You might reasonably assume that molecules wouldn't practically ever randomly assemble themselves into anything worth looking at. It happens a bit differently instead:
So you really can just vibrate sand and get out all kinds of things!
A bit misleading to talk about nature's great search as natural selection via mutations+generations. It's actually much weaker (there is no algorithm or optimizer at all, only one long aimless physics sim) or uh much stronger (a five-level hierarchy having branch factor ~ 1 billion of experiments of different kinds).