: I don't know about time travel or anything, but philisophically time does not exist. For without a future or past and a present that is unmeasurable, then time cannot be real. It has been invented by the human mind along with a lot of other things. Another spin is this: Zeno of Elea proved that motion cannot exist nor change, so if time is the progression of nor iceable change than it cannot exist if change does not exist. I agree with you.