I think, the hard to spot realism, is that the error in mathematics, that's built-in from us seeing only the smooth curves of the world around us. Is that, we couldn’t build the maths for that region where there is the smallest measured unit of structural.

Because, you must have that smallest level of structure or structure can be zero.

So, and this is the real eye opener, that error is the step difference from nothing to being something. If you don't see or know that number, then effectively being able to understand that difference is hard, because it’s hiding or hidden.

That's kinda like a logic feeling, so hard to spot.