In code, a single typo breaks the whole thing. So spaghetti code by definition is bad and breaks easily.
Sure, we have a fuck ton of complexity. But it’s only messy to us because we don’t understand all the conditions that led to it.
Humans certainly have flaws, but in general we are as well suited to surviving on Earth as you possibly can be, especially on the whole.
I’d say: we’re so so much better designed than any code that exists anywhere today, that it’s a farce. We are literally the opposite of spaghetti code. We’re Antifragile!