At every point, matter and energy takes up a spot somewhere in the universe right?
Time is simply the speed at which matter and energy change position or form, still right?
Therefore only the PRESENT exist.
Just because we have memory we can imagine the past and the future.
However, if energy cannot be created or destroyed, this means the matter and energy in space can only exist in ONE PLACE at ONE TIME.
I always found the concept of time travel ridicolous because it sounds this simple.
What am i missing?
Edit:Typos