We’ve found organic compounds in countless places around the cosmos, and we have some evidence that comets and asteroids affected life right here on Earth. By that logic, the galaxy should be crawling with chatty aliens looking for other intelligent life, yet we’re still not sure if we’ve ever heard from them, or if they’re out there at all. This is known as the Fermi Paradox, and there are solutions to it. It’s just that some of them are a little more dark and doomsday-ish than we might like to think about…