Cosmic bubbles left over from the Big Bang hold a quantum secret: they are born simultaneously in all possible states. When they collide, their internal entanglement creates unique gravitational waves, which can be heard as an echo of the quantum nature of space. Future detectors might just catch this signal.
🎯 Each bubble was born at once in all possible states — as if a tossed coin landed both heads and tails simultaneously. The complexity of each bubble was astronomical: the number of its microstates exceeds the number of atoms in the observable Universe.
🎬 Sci-fi often plays with the theme of multiple universes, but here the 'bubble universes' are also quantum-entangled — as if they share a common memory of the moment of creation.