Merkur 23C, btw, in case anyone is looking for a safety razor that’s both inexpensive and very good. Unchanged for literally a century now, no fancy materials (“aerospace-grade aluminium”) but good ole chromed zinc and brass. On the blade side, Russians being out of the picture, BIC is probably the right choice unlike other western brands they didn’t slouch on quality. Feather is always an option but many consider them too sharp. Also, more expensive. BICs should be somewhere around 15ct a piece. Don’t buy anything of that stuff from Wilkinson or such their offerings in that area seem to only exist to make safety razors look bad.
Which is just stochastic optimisation.
Which yes is exactly what evolution does, big picture. Small picture the genome evolves a bit more intelligently, using not random generation and filtering but an algorithm employing randomness to generate, and then the usual survival filter because doing it that way is, well, fitter. Also what you can see under a microscope.