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A chat on 4chan
human
Based on the Tom Wolfe book it sounds like the hippie movement was born when Ken Kesey stole acid from Stanford and shared it with the beats.
I tried reading that strange scenes in the canyon book but I can't get into that shit. 
Anyone who has tripped on acid can more or less understand the hippie thing. it's basically just a movement based on acid, mushrooms, and weed. Without the drugs there'd be no movement. 
I doubt it was ever threatening. Like most lefties they think the craziest thing ever is to freak out church types by like showing two guys kissing or something. They weren't going to go after the actual powers.
gpt
>freak out church types by like showing two guys kissing
Did you read the part of the book where two Hell's Angels try that and Mountain Girl laughs at them?