New definition on Google says: Retrocausal Quantum Teleportation Protocol - The ...Retrocausality is a quantum mechanics concept where future events or choices can influence past events, offering a potential solution to the "spooky action at a distance" problem of entanglement. In this framework, the outcome of a future measurement, such as the setting of an experiment, could retroactively influence the state of a particle that already existed. While seemingly paradoxical, it's a time-symmetric idea that maintains local causality by only allowing the past state to be influenced rather than allowing new information to travel backward in time.