Response to @danielsfuneral: "To start, 'matter cannot be created nor destroyed' is only true in closed systems. The totality of existence is not closed, while the observable universe is. When looking for truth in first cause it can only be known a priori, since surely we cannot experience this."
"Just a few more lexical red flags worth noting here. The universe is a closed system, so the phrase 'totality of existence' is deliberately designed to imply elements of existence outside the universe that are not at all known to exist in order to them use that implication to argue that there are elements of existence outside the universe. This is a textbook example of begging the question. Additionally, the suggestion of a 'first cause' is not at all knowledge, let alone a prior knowledge; it is a conjucture, and one that violates the principle of causality. It is self-contradictoy to claim that an uncaused cause exists because everything must have a cause, and it is special pleading to claim that an uncaused cause exists because every caused thing must have a cause."