Time?

[Conan_The_Barbarian]

alright so me and a friend were stuck in the car for some time, couldn't find anything on the radio so we decided to have a pointless discussion. Somehow or another the concept of infinity came up and he said nothing can possibly exist forever.

I refuted and said time has to exist forever and here was the point I made.

Time is the rate of change between things (things being anything). It is impossible for time not to exist infinitly because anything that existed without time would begin and end at the exact same yoctosecond thus having never existed so it is impossible to have a period when absolutely nothing, including time didn't exist because it ended as it began and began as it ended. On a line the difference between one location and itself is 0 meaning there is no change in position. So if the length of somethings existance is 0 it never existed in the first place meaning time has always existed and always will exist because the moment it doesn't exist is the moment it begins to exist again making its end impossible!

There of course is the argument that deals completely in the unknowns, that we beings of this Universe and reality are incapable of perceiving an alternative but that's always the last resort of scoundrel in my opinion, take a position that is seemingly irefutable unless you have a damn PHD in the subject.

He thought that was pretty solid argument and so did I, and philosophy or physics majors wanna rip it apart? I'd really like to see where its flawed anonymously so if this discussion every does come up again in real life (which strangely enough it does) and don't try and make a seemingly stupid point.