@ACB,
[SIZE="3"]
ACB;51468 wrote:The basic problem is this. Normally, when we say something had a beginning, we mean 'at first it did not exist, then it did'. That is to say, 'before the time (period) during which it existed, there was a time (period) during which it did not'. Now, if one says that about the universe, it contradicts the idea that time began when the universe did (i.e. in the Big Bang), does it not? Isn't the idea of a 'period before time' incoherent?
This is tough to explain because most people don't agree what "time" is. If you followed my little modeling exercise a couple of posts ago, you see I talk about a
most basic uncreated substance. This "ground state substance" is not only most basic, it is indestructible; I also modeled it as existing in/as an infinite ocean.
I suggested that a fundamental dynamic of the ground state substance ocean was compression and decompression, and then went on to model the Big Bang as an
extreme compression and release at the ground state.
The next idea was that as the post Big Bang de-compression proceeded (as the expansion of the universe), minute compressions (as atoms) were part of that expansion process.
As you know the expansion of the universe continues ever faster, the amount of radiation each instant is enormous, protons are predicted to decay, etc. All that "entropic" change is consistent with the ground state model which predicts the matter of universe is decompressing and returning to the ground state.
While the whole universe is incessantly changing, and changing toward disorder, we also notice that what seems to prevent our universe from instantly decompressing is all the matter tied up in cycles, from Earth orbiting the Sun to mass ties up in atomic cycles.
So what we do is track change by using regular cycles to count, and we call that type of counting "time." But all we really are counting is the cycles of matter, matter that is gradually returning to the ground state. No matter what sort of cycling we use to count, eventually (according to model I'm proposing), there will be nothing left to count because it will have returned to the ground state.
SO, saying time began with the Big Bang is saying physicalness began, a type of compressed ground state substance,. "Time" will run out when physicalness is all decompressed, but time only runs out for matter; the ground state is eternal. It always has existed, it always will.
It's like if you only could see, say, a huge iceberg, and you think that's all there is. You think time began with the appearance of that iceberg, and start counting how fast it melts. When it is gone you'll think time is over . . . except there is an ocean you can't see that it's melting into which continues to endure. Time only applied to the life of that iceberg, not everything.[/SIZE]