Read Flanagan!
Short version: Edge eats a whole jar of mushrooms (no idea of jar size), just to see what will happen. Feels nothing, goes to bed. Wakes up high as a kite, convinced he's found the Secret of the Universe. Decides to record it so he'll remember in the morning. Giggles at red light on tape recorder. Speaks the Secret, before exiting Earth completely.
Next day, plays back tape, realises he'd been holding the recorder upside down and there's nothing but incomprehensible gobbledygook. (I dunno that the orientation of the recorder would have made much difference, there.)