What is time travel?

Time travel is the action of traveling through time into the past or future. This topic is very common in science fiction. But supposedly, there is video footage of it happening in real life. Albert Einstein's theory of special relativity could also explain this. The special theory of relativity states that space and time are woven together in a symbiotic manner. Having one without the other has no meaning in our physical world. To be redundant, without space, time would be useless to us and without time, space would be useless to us. This mutual dependence is known as the Spacetime Continuum. It means that any occurrence in our universe is an event of Space and Time.