cyrek:
Travis didn't use the rasin bread analogy because it's really difficult to demonstrate the lack of centre in something which clearly has a centre. He's obviously chosen to assume that the universe has n>4 dimensions. That's not an assumption I personally feel comfortable which at this point in my education, but he's using the proper analogy to demonstrate it.

Star Pilot:
Well, if you assume all of the "something" started out as energy, which doesn't take up volume, per se, then this compression is trivial.

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"I'm making wheatloaf. It's like meatloaf, only with wheat"
"Isn't that just...bread?"