Oddbean new post about login | logout The reason they all look humanoid, and the partial reason JFK was killed, is that it's humans from the future. There's nothing else out there but us and ourselves from the future, creating paradoxes and influencing history. Free will doesn't exist in our timeline.
What if they were humans on the surface at one point, but they went underground a very long time ago, and they live there? That explains the white bodies and big dark eyes and stuff. I don't necessarily believe that, but it's another theory. I don't believe anything 100% when it comes to aliens.