OP here again.
>>49
You've got it all wrong. A singularity is not "just a point in space." A singularity is a point in space whose density, mass and size all go beyond the planck scale. That means that it's impossible to calculate (with our current model of physics) what a singularity actually is. Of course, you can make observations and mathematical conclusions that use physics similar to the singularities (Things like the event horizon), but it's impossible to determine what's actually "in" the singularity.
Before the discovery of hawking radiation (x-ray radiation coming from a black hole), it was thought that all information that goes into a big bang is lost. When hawking "discovered" hawking radiation, it was determined that black holes do not lose all of their information. From what I understand, the contents of the singularity are all just in a state of ambiguity.
And on 4... please kill yourself.
The balloon model is almost like a 2D representation of the universe, but one that curves on itself. A good way to explain it would be to say that our 3d universe is flat when looked at from a 4th spatial dimension. It's almost the exact same way.
The inside of the balloon is irrelevant in every way.
And no, space is not infinite, it simply looks infinite because it "curves" back onto itself. That's generally what the common understanding is.