Two massive spheres in space: push one, and the second won't feel the push instantly—gravitational waves arrive with a delay. But quantum entanglement is not a wave, it's something else entirely. The debate over whether ordinary gravity can create such a link is settled: a quantum field is essential.
🎯 Einstein dubbed entanglement 'spooky action at a distance' and hoped that ordinary waves or particles were hiding behind it. Today we know: it's a purely quantum effect, with no hidden tricks.