Where is Everybody?

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There are perhaps 400 billion stars in our Galaxy alone, and perhaps 400 billion galaxies in the Universe, it stands to reason that somewhere out there, in the 14-billion-year-old cosmos, there is or once was a civilization at least as advanced as our own.

Stephen Webb elaborates on why we have encountered no evidence and no messages of these extraterrestrials.

Favorite quotes from the book:

“Believing the world is calm because we have never seen it otherwise is like taking the attitude of a man who jumps off the top of a tall building and figures that, since 29 of the 30 floors have passed without incident, he is going to be okay.”

“We’re searching for intelligent, conscious, tool-making beings that have developed a language we’re capable of understanding. We’re searching for intelligent conscious, tool-making, communicative beings that live in social groups (so they can reap the benefits of civilization) and that develop the tools of science and mathematics. We’re searching for ourselves…”