Math tricks to impress your friends (179)
Mentalists are illusionists who attempt to imitate the phenomena of telepathy, clairvoyance, divination, precognition, psychokinesis, mediumship, and many other phenomena. They perform theatrical performances whose effects seem to suggest the use of parapsychic abilities, but these are merely highly contrived tricks. In other words, they are conjurers who perform "mental magic" tricks! To achieve this, they employ every possible technique: psychological, hypnotic, mnemonic, and body-reading, combined with rapid calculation and other skills. They often also employ their mathematical knowledge. This is called "mathematical magic." This is what we discuss in this video, with Sara Chessa.