I understand why they added Wilson to the script and I think it was necessary but I am not sure I would do that myself.
The cave makes sense initially but he never really improves upon it. I guess I am thinking of all the stuff they built on Gilligan’s Island (which was fictional of course). It just seems like he should have built more stuff…perhaps build a hut, a bed frame, table etc. inside the cave.
Also, he was there four years. He could have started building a raft in the first month and had a much nicer raft than the one he used.
I still like the movie. I just think if it were me I don’t think I’d have a Wilson and I would probably build more stuff somehow.
I feel like I’d make a fleshlight before I make a Wilson to talk to.
I think I’d go with a cave and try to fortify the entrance a bit.
Figure the rest out once you have post-nut clarity. My money’s on you to survive