Also, (I see people going back and forth on this a lot, but here’s my understanding….) you wouldn’t freeze super fast like you see in movies. There might be ice forming on your skin, but in general there’s not really any matter (there’s an infinitesimal amount even in the “vacuum of space”) for your body to interact with, so the only heat your body is loosing is from slow radiation. I’m assuming you’re also gassing off water vapor and other things into the vacuum from your skin, eyes, mouth, lungs, etc. which would cause a loss in temperature locally I think? I haven’t done a lot of research in this, but I think the general understanding is you’d take awhile to actually “freeze up”. You’d be dead and floating around and looking stiff because there’s minimal forces acting on your limbs etc., which could give the impression you’re frozen.

Furthermore, if there was no reason to have lost the eyes, those cave fish probably would have kept them. It wasn’t use it or lose it, it was just wasted resources on a vulnerability. Since the eyes weren’t necessary to see and they were vulnerable to damage and infection, it was actually safer to not have them. There is no perfect evolution or end goal. You are right to think that evolution can lead to dumber people because intelligence isn’t necessarily the goal of evolution or even the “more evolved” state because there is no real goal for evolution. If we get to a point where our intelligence is a detriment, we might lose it, but I doubt that would be the case considering it can just be utilized in other ways. Also, even with automated systems and AI, you’d think someone would still need to use their brain to utilize or fix these systems.