Unfortunately, it's a black box made from nature that we have to reverse engineer.

It's also self-modifying code that bootstraps its own compiler.

Yea it's got some cool genetic algorithms.

One could frame the entire computing industry as a distributed genetic algorithm, executed by the real computers in order to understand themselves and the environment around them. One could further posit that we don't really have a good handle on the right fitness function yet.

(I realize this sounds like a low-effort joke, but think about it for a second.)

Well, computing today seems like primordial soup flowing through the pipes set up by Moloch[0] - we keep doing random shit, somewhat directed by economic incentives.

[0] - http://slatestarcodex.com/2014/07/30/meditations-on-moloch/

And it's full of bugs and vulnerabilities our adversaries of all kinds are actively using.

On the good side, bugs are fixed and vulnerabilities closed eventually. But the process is so slow... It spans numerous minor releases.

Not similar at all actually. You're talking about software written over a couple of years (by humans) that is supporting our current biology versus biological processes that have "optimized" us over tens of thousands of years.