Darwin and Evolutionarticlesection

If we haven’t yet communicated with aliens, can we know anything about their character?  Astrophysicist Gregory Benford of UC Irvine thinks we can surmise one thing: they are frugal.  Why?  “Whatever the life form, evolution selects for economy of resources,” he said.  Broadcasting is expensive, and transmitting signals across light-years would require considerable resources.”   […]