Do you know any other "reality inconsistencies"?

How could you go to the past and kill yourself? if you think about it you'll get to the conclusion that is impossible. do you know any other reality inconsistencies? If you do post them pleas

Thats just it though ... until we get the ability to time travel ... it is all theoretical ... first aquire the ability to travel time?

but if you do create a time machine you can just go back in time and give it to yourself eliminating the need to ever make one in the first place, I heard that on a tv programme and it got me thinking, because if you were to create a time machine you would know because the first person you go to see would be yourself, unless theres some undiscovered law of physics prohibiting you existing twice in the same time frame

I agree with above.
Like say you went back in time to stop someone dying and you did.
You have erased the reason why you went back in time so it affects the future and in the future you dont do it.
It just irritates me when I think about it, I dont think its possible.

I dont think theres such thing as the past or future.
Just the present which is constantly changing.
You cant go back because there is no place to go back to, it has changed into what you see now.