So, the most important part of the balloon analogy is to get away from the concept that the balloon itself is a 3d construct in 3d space and only focus on the plane expansion into an immense curvature. This makes much more sense for the sites where I'm reading the universe is flat.
So, when...
Regarding the creation of the universe and the current model:
Is it assumed that the universe, at the time of creation was finite in size (or at least more finite than it is now) prior to the rapid expansion, or was the protoexistance finite in size in an infinite universe? So, did the...