in fairness.. this is more a limitation of the current technology. your look at gpt4 and going not an expert. but what about gpt5 or 6.. or some of the newer ideas like microsoft plan for 1 million token model using attention dialation mechnism. The point being we are still on the ground floor. And these models have emgerent functionality

I'm not sure that the case, the brain is very complex so there lots of places thing can go wrong.For example damage in the limbic system could cause increased fear responce or damage in part of the brain that could down regulate the limbic system. We tend to acknowledge this in the case of brain injury. But there does seem to be a bias when it comes to neurological defects that don't have any known direct causes. But it super possible to just have a brain that emotion processing is abnormally predisposed to fear responses to that point that is should be considered a mental illness

It sort of depends on your definition of terra forming. Like if your goal in Earth 2.0 .. Then your likely not going to get there.. there not enough free mass in the solar system to build mars up to size of earth. But if your goal is to make mars livable. we could build into mars crust to allow for high pressure areas .. If the goal is to get a temporary atmosphere .. that would take a few millennia active effort