Dirac key ring

cults3d

That's the Dirac equation. Thanks to this, it describes the phenomenon of quantum entanglement, which in practice says that: 'If two systems interact with each other for a certain period of time and then separate, we can describe it as two separate systems, but in some subtle way they are converted into a single system. One of them continues to influence the other, despite miles of distance or light years'. This is quantum entanglement or quantum connection. Two particles that were once linked together are still somehow related. It doesn't matter how far apart they are, even if they are at opposite ends of the universe. The connection between them is instantaneous.