Except the Big Bang theory doesn't say there was a moment of time zero, the "moment of creation" before which there was nothing. This is a popular misconception

Except the Big Bang theory doesn't say there was a moment of time zero, the "moment of creation" before which there was nothing. This is a popular misconception about the BBT which is driven by our religious beliefs: there was nothing and then something caused something. BBT in its modern form approaches very dense and very hot moments of the Universe, but doesn't say anything about "creation".