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Originally Posted by dleviwing A center infers that there is a point that everything can be referenced to as being from that point. This is the concept that would depict an explosion. The universe is expanding and thus it is more indicative of a swelling that occurred throughout the volume. Though we can define a location as being the center of the universe (provided we know the diameter of it), this cannot be interpreted as the starting point of expansion. The universe is like a substance of an explosion that has not yet been expelled in all direction from the source. Thus the whole universe is the central point of existence of an explosion that has not yet completed (the open universe concept). |
In a recent lecture Stephen Hawking gave (don't know the URL offhand but it's an easy search) he more or less agreed that all the assimmilated and correlated data of decades old projects including the cosmic microwave background radiation experiments that are just now bearing fruit, more or less point to the isotropic nature of this Universe, with some negligible exceptions - ie. the distribution of space and matter is fairly homogeneous no matter where one places oneself within the cosmos and that it will always look pretty much the same in character. This conclusion, along with those negligible exceptions, are entirely supportive of the model that I presented in my personal TOE theory posts, where the creation of matter and space-time are an ongoing process at the periphery. Dr. Hawking as much concludes that the Universe is therefore closed and infinitely expanding in volume, but acknowledges with some excitement the possible extrapolation of a small cosmological constant therefrom. Not at all surprising, because I see too that the overall ratio between matter and space-time must have some consistency. I also said that the Universe can only be observed from within, and he as much implies this without saying it outright by virtue of his description of it as being a closed Universe. Naturally the Universe had a beginning and that beginning was a singularity for the briefest instant in time, therefore we may presume that there is or at least was a center but it wouldn't surprise me in the least if that center has shifted, stretched, and distributed itself throughout a very large spatial identity, given the warped nature of gravity over space-time and their influence over these 13.7 billion years or so of existence.