williams@kirk.DEC (John Williams 223-3402) (05/06/85)
>> 3- the universe has finite age, but no first moment. > Not possible in any meaningful sense. > Please remember that "time" in relativity is a coordinate and > does not have a global invariant meaning. In general there is no > absolute "time" one can apply to the entire cosmos (although some > cosmologies happen to have one). Relativity has everything to do with the observer. If what you are stating is that the observer will fluctuate proportionally with the universe, then I agree. If you are stating that the universe does not fluctuate, then I disagree. Granted, and absolute description of the universe is imaginary, and there can be several ( if not infinite ) descriptions of the universe, but these should reduce to essentially the same equations. > "In the classical General Theory of Relativity, which does > not incorporate the Uncertainty Principle, the initial state of > the universe is a point of infinite density. Again, relativity has everything to do with the observer. The uncertainty principle is more a description of the limitations placed upon the observer. Quantum Mechanics describes how space-time contructs stable symbols, and how, as observers, we are only able to perceive these symbols. Here is a definition of a symbol: In an unstable environment, a symbol is a pattern that perpetuates itself by means of constructive interference between components. Now, if the universe has this tendency to oscillate in localized regions, then atoms, and other particles, can be said to be symbols, or stable patterns within spacetime. Logical thresholds can only apply to these symbols, and not necessarily to the underlying continuous relationship. Many current theories propose that there exists matter outside the known universe, that is, that the big bang was merely a phenomenon consistent with the laws of physics, and not necessarily the " creation " of the universe. Of these, the most probable today is the Omega=1 universe, where the known universe is only a localized region where spacetime is curved inward, and that there exists regions where the universe is curved outward. It is possible that this is what happens inside a black hole. We are familiar with the laws of gravity when the field has a convex shape, these are the laws we interact with, but what is unknown presently is how matter interacts when the field has a concave shape, say, at the point of concentration. It is possible that the laws of physics could be reversed in the highly localized regions, where we are for the most part, unable to access. John.