Books by Avi Loeb

3. Avi Loeb, Extraterrestrial: The First Sign of Intelligent Life Beyond Earth .  The Oumuamua book, by the former chair of the Harvard astronomy department.  I am not able to judge the scientific claims about comets, light refraction, travel spin, and the like, but too much of the book felt like “argument from elimination” to me.  “Well it can’t be this, and can’t be that, and thus it is likely to be…”  That works well for phenomena we understand!  But it can lead you into dangerous traps when ...