If the Universe Is Teeming with Aliens ... WHERE IS EVERYBODY?: Seventy-Five Solutions to the Fermi Paradox and the Problem of Extraterrestrial Life

by Stephen Webb

taking a conservative viewpoint, we can probably rule out the existence of a KIII civilization anywhere in our Galaxy, a KII civilization in our particular part of the Galaxy and a KI civilization within a 100 light years or so: if they were there, we would surely have heard from them. Billions of channels and—so far—nothing on.

Wow. Our development base on exploitation on resources.