The Physics of Extraterrestrial Civilizations

How advanced could they possibly be? Dr. Michio Kaku

The late Carl Sagan once asked this question, “What does it mean for a civilization to be a million years old? We have had radio telescopes and spaceships for a few decades; our technical civilization is a few hundred years old... an advanced civilization millions of years old is as much beyond us as we are beyond a bush baby or a macaque.”

Geweldig artikel van Michi Kaku, de auteur van o.a. "Visions"". Dit keer schrijft hij over buitenaardse beschavingen.