Kent A. Peacock
About Kent A. Peacock
Kent A. Peacock is a professor of philosophy at the University of Lethbridge, in Alberta, Canada. He has published on the history and philosophy of physics, the philosophy of ecology, and the climate crisis.
Did climate change destroy the aliens?
Italian physicist Enrico Fermi had a knack for back-of-the-envelope calculations. In a famous lunch-time conversation in 1950, Fermi used his knowledge of astronomy and probability to highlight a problem: If intelligent life exists elsewhere in the galaxy and if long-distance space travel is achievable, then Earth should have been visited by aliens by now.