Besides reaffirming my belief that I'm a great liar and should do it more, my test also gave me some insight on how psychics work. They're talented when it comes to finding ways squeeze emotions out of you and make general statements that allow you to fill in the blanks yourself—you're contributing to your own deception (example: They say they sense a female presence watching over you, at which point you say, "Oh shit, my aunt/grandma/mom/friend/cousin/sister/teacher died a little while ago—it MUST be her!"). I think so many people turn to psychics because they help ease the fear of the great unknown that is death and give meaning and purpose to seemingly unfair and random events in our chaotic universe. To me, that's a form of preying on the weak and exploiting people at their most emotionally vulnerable, but if you believe in the afterlife and psychic powers, I can understand how the experience would be comforting - after all, who doesn't want to know that a loved family member, living or dead, is doing okay?
In 1880 the American stage mentalist Washington Irving Bishop published a book revealing how mediums would use secret codes as the trick for their clairvoyant readings.[84] The Seybert Commission was a group of faculty at the University of Pennsylvania who in 1884–1887 exposed fraudulent mediums such as Pierre L. O. A. Keeler and Henry Slade.[85] The Fox sisters confessed to fraud in 1888. Margaret Fox revealed that she and her sister had produced the "spirit" rappings by cracking their toe joints.[86]
In 1954, the psychical researcher Rudolf Lambert published a report revealing details about a case of fraud that was covered up by many early members of the Institute Metapsychique International (IMI).[163] Lambert who had studied Gustav Geley's files on the medium Eva Carrière discovered photographs depicting fraudulent ectoplasm taken by her companion Juliette Bisson.[163] Various "materializations" were artificially attached to Eva's hair by wires. The discovery was never published by Geley. Eugéne Osty (the director of the institute) and members Jean Meyer, Albert von Schrenck-Notzing and Charles Richet all knew about the fraudulent photographs but were firm believers in mediumship phenomena so demanded the scandal be kept secret.[163]

Some scientists of the period who investigated spiritualism also became converts. They included chemist Robert Hare, physicist William Crookes (1832–1919) and evolutionary biologist Alfred Russel Wallace (1823–1913).[13][14] Nobel laureate Pierre Curie took a very serious scientific interest in the work of medium Eusapia Palladino.[15] Other prominent adherents included journalist and pacifist William T. Stead (1849–1912)[16] and physician and author Arthur Conan Doyle (1859–1930).[17]