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

The reason there seems to be no interaction between them and us is that they don’t want to be found—and they have the technological ability to ensure we don’t find them. The zoo scenario involved the idea that advanced ETCs are simply observing us.

Zoo