@ZEPHYRA Thanks for reminding me. :-Þ The fact I wasn’t young at time when Pink Floyd recorded Time is indication enough of why that’s a depressing thought.
@tups Great Question, but are you sure it’s time to ask it? I mean, we assume time is constant. That whatever interval we agree upon to measure time, a clock 10 billion years ago and one running today, or 10 billion years in the future, would all run the same in relation to the local observer. But is that even true? If a nuclear clock is currently our most accurate timepiece, and spatial expansion is speeding up, mustn’t time then slow down in inverse proportion to space speeding up? When we reach heat death (Infinite entropy), won’t time have stopped?
Ah well, we’ve got plenty of time to worry about that at some time far in the future.