In fact, you could argue that the reason that we haven’t been visited is that [aliens] have already observed us and concluded there’s no sign of intelligent life here. I mean, if you have a spaceship that can cross the galaxy, you’re way smarter than us, because we have nothing that remotely approximates that. So why would we assume that we would be interesting enough that they would want to study us? That’s just humorous. How interested are you when you walk past a worm crawling on the ground? Do you ever say, “Hey, I wonder what that worm is thinking?” I’m sure you’ve never had that thought in your life. You might have even just stepped on the worm. So, imagine a species with that intelligence gap interacting with us. They could not come up with a stupid enough thought that could stoop as low as to fit inside of our brains. —Neil deGrasse Tyson (via darkknightrises)