And everything else in the physical universe. So what we call "time", in your estimation is just the rate at certain things change, like the motion of a pendulum, the frequency of an oscillating circuit, the breakdown of radioactive elements, etc.
So now consider this:
There's a universe in which every now and then, a random half of the universe is suddenly lighted by a purple glow, after which a cloud envelops it and then goes away in 100 years.
Only when the cloud clears, everything in that half of the universe is as if time stopped when the cloud appeared. Practically no time went by from the standpoint of someone in the affected half, but in the other half 100 years had passed.
Then, one day, the entire universe began to glow, and a cloud formed, and then went away. Did any time pass?
If you can figure out that, you know one of the problems with Bob's idea.
But
Has anyone but me noticed that seemingly every argument presented against the opening post does nothing at all but to introduce yet another clock?
The above post is more than a little wacky. The implication seems to be that if we don't witness events occurring in a particular region that therefore no events have occurred and therefore no time has passed in that region. The refutation of which would be to simply ask the question, "When did the purple haze show up and when did it disapate?" (i.e. two ticks of a clock.)
Is that what you were suggesting? If so, you don't understand the arguments made in the opening post nor what any of us are talking about.
Clete