MFF : since this is your thread : I looked at the first post and skipped the next 10k.
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What exactly do you want to know?
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About Aliens? You kinda gotta start with the fact that Parallel Worlds exist and the nsa is one of those whom go around and put up a building in one world : very similar to the previous: to identify it : and also do those stupid writings on pavement Jockstrap was Here : that you're brain doesn't notice because you've accidently moved from a nearby world and have ignored JWH on the sidewalk to the grocery store for months for : now reads in yellow Buy More Tofu Tofu. That's how the govs men in the know they've moved to Left Side Parallel Woridv but you don't.
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I suppose this is my apology for the above : but do watch out for Fake but Real Looking Giant Blue Whales