Cobra snake writes:
Ok, but the universe HAS NOT NECCESARILY always been, by definition.
Quite not. "The universe," defined as "all that exists," and "always," defined as "the set of all extant time values," clearly validate the statement "the universe has always existed." You appear to be using uncommon or overly simplified definitions for your terms.
Cobra snake writes:
there is good evidence that the universe DID have a beginning.
Which evidence is that?
Cobra snake writes:
It is true that the universe COULD have already existed, but again, this flies in the face of scientific knowledge.
Methinks you're failing to keep up with the rapidly advancing cosmological scientific knowledge lest you you would not make such statements. Consider for a moment that space-time seems to be continuous: Do you realize how many moments in time there are on an interval between any two non-simultaneous space-time coordinates? Do you know how many points are there on a continuous line in geometry? Infinitely many. The consequences of General Relativity -- probably the best supported and most useful theory in physics -- reduce space-time to basically a tensor field, or an abstraction of the relation between objects.
Moments in time have no real temporal duration.
Now, I realize that the next best supported theory in physics -- Quantum Mechanics -- places limits on the observability of space-time continuity. It is important to realize that this is inherent in our mechanisms for observation, and not necessarily a property of objective reality. Indeed, the wave equation, which is now regarded as the most complete description of quantum states, is also continuous which gives us good reason to believe that space-time is in fact continuous below the limits of observability (i.e. the Planck scale).
Blessings,
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