Few tropes in modern America are as enduring as the LSD Trip Gone Far Too Long. It should all be over after a few hours, right? OK maybe not. Eight? Ten? Probably should have cleared more of my calendar. Even though science has long had an intimate relationship with LSD-chemist Albert Hofmann first synthesized it way back in the '30s-why the drug insists on producing such lengthy hallucinations hasn't been so clear. Until now.

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