Perhaps most of us in this forum have only the most basic exposure to biology? I say this because with any serious exposure you can't help but be dumbfounded by the complexity and "creativity" of nature. Everything is amazing! The fact that the pieces fit together is just wild and scary and awesome. To think that gradient descent and backprop will give us general intelligence, one of the great mysteries of nature, is incredibly hubristic, IMO. It's statistical inference at scale, with some heuristics up/downstream. It's a cool and useful tool for sure!