Time travel is presented in movies as if it’s simple as pie. Just jump in your car and get to 55 MPH and your in 1955. What about getting in a Hot Tube and your back in 1986. Yes I was one of the few people that enjoyed Hot Tub Time Machine (the original mind you) because I like time travel. However there is a major problem with time travel that hit me like an airplane hitting the sound barrier.
The Milky Way is a spiral galaxy. It’s a spiral galaxy because it’s moving. Some estimate the speed of our solar system at 514495 MPH. Running some quick math If you went back in time just five minutes your going to be 4287 miles out in space.
This is why the past never changes.