What can the search for extraterrestrial intelligence tell us about societies on earth?
Smaller international organizations do sanctions better, Bryan Early has found. Indeed, sanctions from the United Nations are commonly useless.
David Brin criticizes the possibly reckless turn in recent SETI research. He also speculates on what the great silence may say about human societies.
Robin Hanson does a cost-benefit analysis on yelling into the cosmos.
Evolutionary psychology explains how we have the societies we do. It will also probably work with extraterrestrials, says Jerome H. Barkow.
Douglas Vakoch argues that sending messages to possible extraterrestrials is a worthwhile endeavor and not to be feared.
David Brin challenges those who think they know what we might find out there in the universe: Our expectations have been dashed before.