The year is 2975. Humanity has split into flesh-and-blood descendants and digital minds known as citizens of the polises. Yatima, an orphan born from a random mutation in a digital seed, is one of them.
When a cataclysmic gamma-ray burst devastates Earth, survivors resolve to uncover why two neutron stars collided millions of years earlier than expected. Their search for truth launches thousands of polises into interstellar space.
Across strange worlds and unimaginable frontiers, Yatima and others encounter civilizations both alien and ancient. Each revelation pushes them closer to a terrifying truth: the universe itself is more fragile than anyone dared believe.
Greg Egan’s Diaspora is a mind-expanding journey across physics, philosophy, and possibility, where survival may require escaping reality itself.