Hey, Boris, I'm here, what's up? Your door's not... Greetings, earthling. OH MY GOD, A GHOST! BORIS, ARE YOU DEAD?! No, earthling, I am an alien and I have come to establish contact. But... you're a ghost, aren't you... No, we are a radio wave form of life, we exist on the boundary of wave-particle duality. We can fly and move through solid objects