Carl Sagan used cannabis and wrote an essay under the pseudonym Mr. X to dispel myths about it.

the verdict

SUPPORTED

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Recorded sources

1 source for · 0 against

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Is it true that Carl Sagan used cannabis and wrote an essay under the pseudonym Mr. X to dispel myths about it?

Yes. A reference biography states that Carl Sagan was a marijuana user and advocate who, under the pseudonym "Mr. X", contributed an essay about smoking cannabis to the 1971 book Marihuana Reconsidered.

Verdict: SUPPORTED · 1 source for, 0 against · Last checked 3 Oct 2026

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Evidence for · 1

Carl Sagan

Get citation

Carl Sagan. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Carl_Sagan

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