The whole slight of hand thing is an interesting allegory for what we grow out of but acknowledge is there. As children, we see magic tricks and are amazed by them, the same as a stage production in how they work illusions around to fool you. Even when we grow up, though we know by then it isn't magic, we can still be impressed by the illusion and how they pull it off, trying to analysis it, but often not figuring it out.
Psychics are similar, yet unlike magicians who perform tricks for amusement, some psychics take their jobs so seriously they are convinced they are doing what they are doing, even when they know its bunk. Many "mediums" get angry when you call them out because they either don't want to be revealed or are convinced they are genuine.
Its not just that though that bothers me about psychics, because while magicians are illusionists who perform for a show, psychics are people who scam money out of vulnerable people who have lost loved ones, who are prepared to pay them so they can talk to there deceased friends or family, and the psychic is all to happy to convince them they are channeling the spirit of a dead loved once, all for a quick cash grab.
Getting money from people for harmless entertainment is fine, I support such arts. Getting money from people who have lost someone is a cruel sport.