👽 The Fermi paradox

The galaxy has hundreds of billions of stars and many planets — so where is everybody? The physicist Enrico Fermi asked this in 1950, and there is still no answer.

• Maybe life is rare, or civilisations do not last.
• Maybe they are too far away, or we are not listening the right way.
• Or maybe, as in Liu Cixin's "Dark Forest", everyone hides — because being found is dangerous. Your Planetary Cloak plays with that idea.