this is how my logic worked:
- energy and matter cannot be created or destroyed- and therefore the total amount remains constant
- when people travel through time - weather forwards or backwards, they take mass with them because they are of course, made of mass
knowing this i am asking: what happens to the mass that disappears? if the amount of mass/energy remains constant and someone travels through time taking mass with them what would happen? the amount of matter in that point of time has increased and the amount of matter taken from the original point of time would have decreased. And according to the first law of thermodynamics this is impossible.
i had a second question but i forgot it, if i remember i will post it.
any questions? :D