[nipah]

Why there is nothing rather than nothing?

This is, I fear to tell you, IMPOSSIBLE to explain by other than methaphysics, it is an uncloseable "gap" that humanity will never solve. As far as I know, it's not about gaps, it's more about the unreasonable stance that everything is explainable by reductionist physics that corrupts the modern thinking, it is more safe for you to assume people's religious beliefs come from "gaps" rather from their own rationality. In reality, you just turned science into your own religion.