[rdtsc]

On a funny note: Someone shared a video with me, which is a joke trailer for Project Lectorium -- a Russian project to collect videos of lectures, math, economics, engineering etc.

Anyway, in one of its parts there is a professor who explains group theory and he mentioned how a "friend" (wink wink) of his used to take drugs. And while on a trip he saw this bubbling substance, it talked to him and it told him "ask me any questions?". So he asked whether something will happen in his life. But the bubbling substance responded "homologies are null/(singular?)". And so since then he had spend most of his life trying to answer that question.

If anyone speaks Russian, here is the actual video:

https://www.youtube.com/watch?v=mqAf5lOJZew

Having read your comment, it reminded me of it.

Also presumably Paul Erdős was fond of amphetamines. I wonder if there are many other cases or stories of LSD or other drugs influencing mathematical discoveries.