Armok, having dealt with this sort of stuff regularly at certain points, I can tell you it is a hell of a lot harder to do what you claim than you seem to believe it is.
Building a simple mind, sure, that's possible - but building one that in any way even begins to approach the way a human's works is simply... not that simple. ESPECIALLY when the problem is that you don't know, to begin with, anything about what you're supposed to be trying to emulate.
Its the difference between building a program that can run video games, and building a program that can run SNES games (especially without access to an SNES, SNES cartridges, or emulators or ROMS).
Evolutions are STUPID, a human engineer can do in a hour what evolution can do in several million years (and do it better
And yet we dedicate years (in some cases dozens of years) to trying, and failing, to solve simple problems that evolution worked out a long time ago. And NASA evolves its transceivers rather than designing them because of how much quicker and more efficient evolution is when constrained in certain ways. The chances of a designed system behaving in the same way as an evolved system (without explicity, knowledgably attempting to emulate it) are slim.