I do not think that I will start believing in paranormal stuff. I do not know what changes might arise from changes in my metaphysical position. I was not trying to single out these things as particularly important as much as I am just afraid of all things that I don't know.

Going to UU won't stop you from discussing those concepts on LessWrong.

I'm personally part of diverse groups and don't expect any one group to fulfill all my needs.

This is good advice. My current picture of UU is that it has a lot of problems, most of which are not problems for me personally, since I am also a rational person and in LW. I think UU and LW are the only groups which I am actively a part of other than my career. I wonder what other viewpoints I am missing out on.