To your point on poor plausibility, I'd add that people have been trying to prove and develop their psychic powers for millennia. If you look at other common human traits, you can see that we're pretty good at exploiting our natural capacities. E.g., how the various martial arts traditions have taken modest raw capacity and learned how to develop it to an amazing degree. Ditto science, art, engineering, music, poetry, and literature.

The failure of all of the various paranormal traditions to develop anything demonstrable despite a lot of effort suggests that there is little or nothing there.