The Boldest Psi Claim, and Why It Draws Magicians

Macro-psychokinesis is the category into which the most theatrical claims of physical mediumship fall: a levitating table, a bent spoon, an object flying across a séance room. Because the claimed effect is meant to be visible and unambiguous, not a statistical pattern buried in thousands of trials, it has always attracted the attention of stage conjurors as much as scientists, since producing a convincing illusion of an object moving without contact is a well-understood problem in the craft of magic. This is precisely why investigators with a conjuring background, from Harry Houdini in the 1920s to James Randi in the twentieth century's later decades, became central figures in psychical research: they could recognise techniques, hidden threads, concealed levers, sleight of hand, that a scientifically trained but magically naive observer might miss entirely.

The claim runs through Victorian physical mediumship, where levitation and object movement were staged as proof of spirit contact, through the mid-twentieth-century vogue for individual "PK" performers, and into popular culture via figures like Uri Geller, whose metal-bending demonstrations in the 1970s briefly drew serious scientific attention before being replicated as ordinary conjuring by professional magicians.