What are you reading?

[The Valkyrie]

Or technological civilizations are rarer than Fermi thought and we're very far from the nearest other one. Our radio signals have only made it about 100 light years. Or they're closer than that and detected them fine and are on their way and will get here in a couple of hundred (or thousand) years, eager to learn more about us.

I like the notion (not my own) that technologically advanced ETs know all about us, which is why they haven’t contacted us. In fact, when they fly past Earth, they engage their cloaking devices AND lock their doors.

Boru

Earth, the Alabama of the Milky Way.