Carl Sagan, Marijuana Advocate, Explains What It's Like to be High while Carl Sagan

Sagan’s involvement with pot began as a secret, when he penned an essay in 1969, at the age of 35, under the pseudonym “Mr. X.”

The piece, in which Sagan described the benefits he felt from using marijuana, later appeared in Dr. Lester Grinspoon’s 1971 book, “Marihuana Reconsidered.” Sagan’s identity as the author wasn’t publicly disclosed until 1999, when Keay Davidson published “Carl Sagan: A Life,” which documented Sagan’s writings as his alter-ego, “Mr. X.”

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