> Now think for a moment, can you construct a sentence that is at all logical, that doesn't move the goalposts or do any linguistic trickery, that could possibly describe where our universe came from? Don't worry about it being true, just a reasonable sentence that obeys the laws of cause and effect?

Mathematical realism ala Tegmark's level 4 multiverse is a concrete example; if mathematical consistency causes existence then the big bang and our universe have a definite, understandable cause.