The words that matter most when discussing conspiracy theories are "inner desires". Conspiracy theories fufill inner desires. The desire to have secret knowledge. The desire to feel important, intelligent or rightous. The desire to have a reason for distrusting the governement or hating group X.

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I want to go back to the moon.
I don't care which rocket you use, whichever one you pick, I'll like it, I swear.
"If you think the LHC will create black holes, you might as well believe Hobbits are at the bottom of your garden."- Dr. Mike Inglis
Rovers forever! - ToSeek