Try to define time. Or just go to the wikipedia article and listen to them try to define it, and digress into a discussion on how some people don't believe in it.
It's very hard to describe time without using the word time: A series of events -- What's an event? The best one I have is: Why can't two object occupy the same space? Well, they can, but at different times. Not really an explanation, but I think it's a good illustration.
Isn't time sort of like goodness, so fundamental that it's indescribable with invoking itself?
I've always thought of time as a measurement of change. No change, no time (i.e. if all particles in the universe were frozen in place at absolute zero then there would be no measurable change and time would not exist).
It's very hard to describe time without using the word time: A series of events -- What's an event? The best one I have is: Why can't two object occupy the same space? Well, they can, but at different times. Not really an explanation, but I think it's a good illustration.
Isn't time sort of like goodness, so fundamental that it's indescribable with invoking itself?