Mitchell not only believes in aliens, but also psychics. In his book "The Way of the Explorer," Mitchell discusses his belief in psychic powers, including those of Uri Geller (whom Mitchell calls "one of the most accomplished psychics I have ever met"), whose claim to fame is his alleged ability to bend spoons—a feat that magicians have duplicated many times.

According to Mitchell, the "impossible" is possible if you don't know your limitations—sort of like how when Elmer Fudd walks off a cliff onto thin air, he doesn't fall until Bugs Bunny points out that it's impossible.

Mitchell believes that dream experiences (or the hallucinations of a person high on drugs) are just as useful in understanding the world as the results of carefully-controlled scientific experiments.