because we're centrally located?
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we're nowhere, on the way to nowhere, with nothing of note. anything that can be found on our planet can be found elsewhere, closer to anything else than us. the only thing unique on our planet is us, and i'm pretty sure that's not a positive thing at the moment. maybe in another thousand years or so.
so, would you set up an outpost to observe poo flinging monkeys? in a place that's out of the way to just about everything else in the universe? why? there's SO MUCH out there to look at, find, experience, and we, in our arrogance, think we can compete with the glories of the galaxy? no one wants to watch us, we suck