My views on Time Travel

for a single moment in time, if the law of conservation of matter is true, i.e. matter can neither be created nor destroyed, then time travel isn’t possible because you can’t destroy matter from a moment of time and create it in another moment of time. So if law of conservation of matter is true, time travel is impossible. But if time travel is possible then law of conservation of matter is false. But until now we haven’t encountered the breaking of law of conservation of matter.