Mentalism

I know that the Zeb's guide is somewhat controversial, and mentalism was introduced in it, but psionics seems to be a major part of sci-fi, especially from the pulp era where SF draws a lot of its inspiration.  Just read some Leigh Brackett to see what I mean.  So, I feel that mentalism should be a part of SF and have created this project to discuss and develop it.  Please don't get on here and deride mentalism; if you have something to add, then by all means do so.  If you don't like mentalism, please leave your comments for some other area.