Size of singularity

A black hole is also a singularity. It is smaller than the size of a proton.

Mass, and size, are not linked. A black hole is tiny (although as pointed out by the previous poster, the event horizon need not be), but has great mass, while the space between the earth and sun is vast, but has very little mass.

It's not a question of Quantum simply being the smallest we can see. The models based on that experimentally derived notion are ASTONISHINGLY accurate, like to twelve decimal places!Scientists don't just make this shit up, you know. They have pretty solid reasons for thinking that things really are quantised at the subatomic level. I'm not going to even attempt to explain it all, it's way beyond my level of understanding and, it seems, way beyond yours. I suggest that if you're genuinely interested in all this stuff, you actually sit down and take the time, and study, to actually learn about how subatomic physics in general, and quantum mechanics specifically, works - because until you do you're just mouthing off.

This is just wrong. Science doesn't say the big bang was created out of nothing, it doesn't say it created itself, it doesn't say there was nothing before it. It says, with some certainty, we don't know - these questions are ones to which we have no answer - we don't even really know that it became a singularity (both string theory and QLG would disagree). What we do know is that there was a big bang, and that it tracks back to a size of 10^-23m - we know this because observations of the CBM prove it, not because some scientist says so.