Caleb James DeLisle on Nostr: I don't remember the exact numbers here, but I'm gonna say actual mutations account ...

I don't remember the exact numbers here, but I'm gonna say actual mutations account for maybe 3% of evolution, the HEAVY LIFTER is random recombination. Everyone has 2 copies of their DNA, one from each parent - but every parent has 2 copies, so sperm and egg creation is randomly selecting each gene from father or mother genome. That gives you randomness within known-working limits, which is a big amplifier.