Ah mate you have triggered my nihilist thoughts. I can say, in short;
Time is ruthless, it goes on because it has to. It eradicates everything in life and replaced them with the new ones.This goes on since the Big Bang, perhaps before that as well :)
It is all meaningless, save the meaning we create while we have the ability to do so, before we are swallowed by the universe, and forgotten in time.