 From a real-world science perspective, time travel is not considered to be possible based on studying current understandings of the universe.Some real-world time concepts include the idea that information cannot travel faster than the speed of light, but on the other hand there is something called entangled particles and even Albert Einstein and Erwin Schrödinger did not come to a definitive conclusion.In the 2010s, there was some indications that events in the present that entangles photons, may affect them in the past and the future.