A team of scientists from Cambridge University claim to have successfully simulated a method of backward time travel using quantum entanglement. Although they emphasize that they haven’t built a time machine, the researchers explain how their process doesn’t violate the laws of physics. By manipulating the entangled particles in their simulations, they were able to retroactively change past events in order to achieve a desired outcome. However, the success rate of their method is only 25%, meaning that it fails most of the time. This research offers a unique and remarkable insight into the possibilities of quantum mechanics but is not a true form of time travel.
https://thedebrief.org/scientists-successfully-simulate-backward-time-travel-with-a-25-chance-of-actually-changing-the-past/