From Denny Crane's link:
Some notable individuals have commented publicly on their experiences with LSD.[118][119] Some of these comments date from the era when it was legally available in the US and Europe for non-medical uses, and others pertain to psychiatric treatment in the 1950s and 1960s. Still others describe experiences with illegal LSD, obtained for philosophic, artistic, therapeutic, spiritual, or recreational purposes.
Dock Ellis, pitching for the Pittsburgh Pirates, threw a no-hitter against the San Diego Padres on June 12, 1970 while under the influence of LSD.
Italian film director Federico Fellini experimented with LSD under the supervision of his psychoanalyst Emilio Servadio in 1964.
Richard Feynman, a notable physicist at California Institute of Technology, tried LSD during his professorship at Caltech. Feynman largely sidestepped the issue when dictating his anecdotes; he mentions it in passing in the "O Americano, Outra Vez" section.[120][121]
Jerry Garcia stated in a July 3rd, 1989 interview for Relix Magazine, in response to the question "Have your feelings about LSD changed over the years?", "They haven’t changed much. My feelings about LSD are mixed. It’s something that I both fear and that I love at the same time. I never take any psychedelic, have a psychedelic experience, without having that feeling of, “I don’t know what’s going to happen.” In that sense, it’s still fundamentally an enigma and a mystery."[122]
Bill Gates implied in an interview with Playboy that he tried LSD during his youth.[123]
Aldous Huxley, author of Brave New World, became a user of psychedelics after moving to Hollywood. He was at the forefront of the counterculture's experimentation with psychedelic drugs, which led to his 1954 work The Doors of Perception. Dying from cancer, he asked his wife on 22 November 1963 to inject him with 100 µg of LSD. He died later that day.[124]
Steve Jobs, co-founder and former CEO of Apple Inc., said, "Taking LSD was a profound experience, one of the most important things in my life."[125]
In a 2004 interview, Paul McCartney said that The Beatles' songs "Day Tripper" and "Lucy in the Sky with Diamonds" are about LSD, although John Lennon explicitly declared that "Lucy" was never about LSD but rather inspired by a picture drawn by his son Julian.[126][127] John Lennon, George Harrison, and Ringo Starr also experimented with the drug, although McCartney cautioned that "it's easy to overestimate the influence of drugs on the Beatles' music."[128]
Kary Mullis is reported to credit LSD with helping him develop DNA amplification technology, for which he received the Nobel Prize in Chemistry in 1993.