So that said, wouldn't it be correct to say that the Universe is expanding at the Speed of light? Meaning that it is radiating outward from a center point at that rate? I do not mean to suggest that matter is expanding at that speed, but radiation from the initial bang is.
So following that assumption (which may very well be erroneous), then it stands to reason there is an outer barrier that this energy has not passed yet, like the film of an ever expanding bubble.
Now, if one could observe this from the outside (which is really kind of impossible, because if you could be outside the bubble then you wouldn't be because you are from the inside so the act of going outside it means you are still inside it, but whatever) Anyway, if you could observe this from the outside, you would see nothing, no light, no energy, no matter, nothing. There would be a big huge nothing expanding toward you.
wouldn't this then kind of be like a black hole? I mean you have the entire mass of the universe contained inside a "bubble" that light or matter hasn't escaped from?