Plesitocene

Years ago, in the Pleistocene, I spoke with the great physicist Freeman Dyson about the search for extraterrestrial intelligence in the universe. He posited that we'd find the aliens with our telescopes - that we'd see something that was not natural.

Years ago, in the Pleistocene, I spoke with the great physicist Freeman Dyson about the search for extraterrestrial intelligence in the universe. He posited that we'd find the aliens with our telescopes - that we'd see something that was not natural.