Quantum particles are breaking the rules of reality – or so it seems. Can they truly communicate across time and space instantly? Einstein dismissed this “spooky action at a distance,” convinced it exposed flaws in quantum theory. But the deeper scientists looked, the stranger the universe became. From fierce debates to important discoveries, discover how a once‑controversial quantum oddity is now reshaping how we think, how we compute, and how the future gets built.To watch the full film, visit https://www.pbs.org/wgbh/nova/video/einsteins-quantum-riddle/ Learn more about NOVA and subscribe to our YouTube channel.