"Technological Civilizations Should Go Extinct After 200 Years" --An Astrophysicist Answers the Fermi Paradox (Today's 'Galaxy' Stream)
Our universe is incomprehensibly vast, with billions of other planets circling billions of other stars. The potential for intelligent life to exist somewhere out there should be enormous. According one astrophysicist at the University of Arkansas, we became "technological" after the industrial revolution and the invention of radio, or roughly 100 years ago. According to the principle of mediocrity, a bell curve of the ages of all extant technological civilizations in the universe would put humans in the middle 95 percent. In other words, technological civilizations that last millions of years, or longer, would be highly atypical.