Spacetime Entanglement

A hypothetical extension of quantum entanglement to the structure of spacetime itself, suggesting that distant regions of the universe might be connected not only by classical geometry but by quantum correlations. In some quantum gravity theories (e.g., ER=EPR), entanglement between particles is equivalent to the existence of wormholes—meaning that entangled particles are linked through spacetime in a fundamental way. Spacetime entanglement would mean that what we perceive as separate locations are actually quantum‑connected, with implications for information transfer, cosmology, and the nature of reality. It challenges the classical notion that space is merely a passive container.

Spacetime Entanglement Example: “In the ER=EPR conjecture, spacetime entanglement means that two black holes connected by a wormhole are essentially the same as two particles entangled across the universe—geometry and quantum links are the same thing.”

by Dumu The Void March 28, 2026