Why we might not be able to go to the past, and why time travel still needs time itself.
Time travel is something we all want to do. Weither we are trying to change something we did in the past, or something that we want. Many pepole think of cars like the one used in "Back To The Future" or some fancy spaceship, but this might not be what we would do. There is also a reason why we might not be able to go to the past. Some pepole also think they can go to the future and back, but that might not be possible.