Re: Ripping the supernatural out of science fiction.
I find psychic abilities far more viable as a sci-fi concept than many things you're rounding out as pseudo-science. Just because warp drive is a machine rather than a giant space whale with ropes tied to it doesn't make it any less fantastical. I may not buy the modern incarnation of telepaths/telekinetics/whatever, but nothing says that a creature can't evolve (or be engineered) to have sensory organs that would act much like psychic powers.
"There is no reason why good cannot triumph as often as evil. The triumph of anything is a matter of organization. If there are such things as angels, I hope that they are organized along the lines of the Maffia." - Winston Niles Rumfoord.