das hier anschauen:

https://en.wikipedia.org/wiki/Uri_Geller#Scientific_testing

Critics of the experiments include psychologists David Marks and Richard Kammann, who published a description of how Geller could have cheated in an informal test of his so-called psychic powers in 1977.[67] Their 1978 article in Nature[68] and 1980 book The Psychology of the Psychic (2nd ed. 2000) described how a normal explanation was possible for Geller's alleged psychic powers.[69] Marks and Kammann found evidence that while at SRI, Geller was allowed to peek through a hole in the laboratory wall separating Geller from the drawings he was being invited to reproduce.

The drawings he was asked to reproduce were placed on a wall opposite the peep hole which the investigators Targ and Puthoff had stuffed with cotton gauze.

In addition to this error, the investigators had also allowed Geller access to a two-way intercom enabling Geller to listen to the investigators' conversation during the times when they were choosing and/or displaying the target drawings.

These basic errors indicate the high importance of ensuring that psychologists, magicians or other people with an in-depth knowledge of perception, who are trained in methods for blocking sensory cues, be present during the testing of psychics.[69]

Marks, after evaluating the experiments, wrote that none of Geller's paranormal claims had been demonstrated in scientifically controlled conditions, concluding that "Geller has no psychic ability whatsoever. However, I believe him to be a very clever, well-practiced magician."[69] <<