Stubborn, maybe, but if it ain't broke

https://slrpnk.net/post/34747703

If it ain’t broke…
“Ain’t broke” is under selling this. Evolutionarily, this is clearly the optimal solution.

“Ain’t broke” is a lot better of a description than “fittest”.

Evolution selects for the first thing that happens to work. It’ doesn’t have to work particularly well, only well enough to not die from it.

not to die too early from it.

Passing on genes is successful enough for evolution.