Quote:
Originally Posted by Bogie
Just an idea, but as far as I know there is no reason that space cannot expand faster than the speed of light. If the big bang created space or if an equivalent event in existing space emerged as a ball of energy without mass, then the superluminal expansion in the first picoseconds could have occurred. After that inflationary epoch, matter could have formed from the energy density.
In this scenario matter would not have to travel faster than the speed of light, and yet would still be evenly distributed across the entire expanding ball after it forms.
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I'm very unclear what you are describing when you use the term "space" in terms of "expanding faster than light". If by "space", you are defining some sort of mental concept about a "pure vacuum" devoid of all mass has no speed limit, sure, I'll buy that idea, but I don't see how that idea applies here.
As far as I know, there was never a "time" when "spacetime" (space with particles of mass) did not exist. I say this because the BB theory itself talks about gravitational fields being present throughout the process. "Space" in the sense of a "pure vacuum" may never have existed for all I know. We however are describing the "expansion" of particles with mass, not what can and cannot happen in a "pure vacuum". I really don't understand what you mean when you say "space" is "expanding".
What exactly is expanding if not the mass particles within the tensor field of spacetime?