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The universe did not start as a point, it is infinite, and always has been. Also, the age of 13.7 billion years is the time since the Big Bang, but this might not represent the age of the universe, which may actually be infinitely old.
Are you Sure about that?
I am not sure about it, but I would be very surprised if the universe is finite in size, and almost as surprised if it began with the Big Bang.
And your reason to prefer the concept of an infinitely old universe is?Personally, whenever infinities crop up in physics I find them abhorrent - but that is just a subjective thing. Having infinities doesn't seem very elegant.