Yea, and it's possible to write chords such that it's actually ambiguous where the tonal center is. To some extent, every (successive diatonic) chord narrows it down, but it's possible that there simply isn't enough information to narrow it down to one key. Or they did something non diatonic to what was happening before, and you have to readjust.
You do realize that natural selection iterates through these same sorts of garbage proteins at a rate of trillions and trillions of bacteria per year for millions of years?, and with bias toward previously existing functional structures? It's a pretty potent optimization process, given the timeframes and scale. and the uncertainty is enough. It isn't equivalent to that, because there can also be incremental progress made toward a functional protein, unlike code.
No one is saying a neuron is a one to one equivalent with a transistor. That behavior does seem like it's possible to emulate with many transistors, however.
I do this, but I realized a while ago that most of the time, what I want to do is learn how to do things, and not actually do them. So that's all I try to do. Because after that, it's not fun anymore.