http://arxiv.org/abs/1912.08386
The union of space telescopes and interstellar spaceships guarantees that if extraterrestrial civilizations were common, someone would have come here long ago.
B. Zuckerman
Thu, 19 Dec 19
47/82
Comments: This article was published in the Sept-Oct 2002 issue of Mercury magazine (published by the Astron. Soc. of the Pacific). Mercury articles were not then available on-line. The present posting is the first on the internet. An electronic (pdf) version of the published article (with some additional words and figures and in color) is available via request at benatastro.ucla.edu