It could still be evolution, but not the current Theory of Evolution.
I don't know if slugs have free will, just like you don't. Perhaps animals have conciousness to a certain degree like we do too, I'm not denying that.
However, when it comes to what's possible to assemble considering science academically understood presently, awareness wouldn't be possible like we experience it.
We can make a robot that is programmed to receive information, analyze it, and make a course of action based on that and many other things, but there won't be any decisions, just outcomes from how it's programmed. We don't know if the slug decides to go a way, or if it's just programmed to go that way depending on the many many factors. A robot can be made to detect itself, but that form of awareness would Never reach the type of awareness that we have.
All we know is that individually we have free will. I know I have free will, and I assume that you do too.
And I agree that quantum physics isn't simple cause and effect.. and what's the say about that area by scientist? well, looks like we don't understand much about quantum physics after all. Some weird sh*t happens in that area.
