Why SETI Will Fail (and why we are alone in the Universe)

“The surest sign that intelligent life exists elsewhere in the universe is that it has never tried to contact us.”

What made the trilogy so stunning and atypical as a sci-fi story was the fact that Liu wasn’t interested in interrogating whether humans deserved to survive. Instead, the novels explored the danger of connection, of the way a thought, once shared, can expand into an unstoppable force—a radical, terrifying ideology or a shrewd solution to a... See more

Fermi expressing his surprise over the absence of any signs for the existence of other intelligent civilizations in the Milky Way. Because a simple estimate showed that an advanced civilization could have reached every corner of the galaxy within a time much shorter than the galaxy’s age, the question arose: Why don’t we see them?