Terence McKenna

I've been reading/listening to Terence McKenna lately. He was a major advocate of psychedelic drugs, and an entertaining and thought-provoking speaker, with many insightful ideas, and many ideas where he seems to take unjustified leaps of logic.
Here are some quotes: http://deoxy.org/t_quotes.htm
Examples I like: "Imagine if the Japanese had won World War II, taken over America, and introduced an insidious drug which caused the average American to spend six and a half hours a day consuming enemy propaganda. But this is what was done. Not by the Japanese, by ourselves. This is television."
"Culture, which we put on like an overcoat, is the collectivized consensus about what sort of neurotic behaviors are acceptable."
So he is an observant, smart guy. However, he also believes that when you take hallucinogenic drugs, your consciousness actually goes and visits living creatures in other dimensions. Because he can't imagine anything else that it could be. Hmm..... what a dumbass. :P