Pop Science reporting example above.
"Extraterrestrial The first sign of intelligent life beyond Earth" Avi Loeb, has not yet been published.
I put this in General Discussion, if someone thinks sound byte previews of a yet unpublished book warrant something different please report this post.
I cannot really comment, for I do not know what is in the book. A priori, if Loeb has additional factual/observational data I think it should have been published or at least pre-published on ArXiv. Anyone have a link? Otherwise the book is very probably speculation.
So it seems reasonable to me to start a discussion thread.