Ehrich Weiss aka Harry Houdini (1874-1926) was a Performer and Escape Artist. His close up Magic was mediocre. He was a Daredevil and a Showman. He sold excitement to a mundane boring world yearning to escape from reality. Houdini's greatest achievement was exposing the Charlatans and Frauds that claimed to possess Supernatural Powers like the famous Medium Mina Crandon (1888-1941) aka Margery. Margery performed seances and fooled many influential people in wealthy East Coast social circles, becoming very popular and sought after in the process. Margery was celebrated and followed by hundreds of thousands of people. Houdini debunked her claims of mediumship on several occasions and exposed her publicly as a fraud. In 1925, the faculty of Harvard University formed a team to investigate Margery's claims. One investigator from Harvard witnessed her pulling out animal offals from beneath her dress while proclaiming it to the Harvard investigators to be "ecto-plasm". There may be genuine Mediums with psychical powers but that has to be determined by scientists with expertise in Parapsychology.