The beginning is either magic or God.
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Nope! By definition there is cause before magic and God.<<
Only if you believe that there is a cause before a beginning. And we’re back to magic or God.
Since there is NO adequate model, even in philosophy, a supernatural creation happened, and it is inexplicable to us...now. Magical, supernatural, God...it is. It is unexplained, and there are few likely current theories. Or you could play a word game that goes nowhere to advance understanding a phenomenon. A Priori Synthetic IIRC knowledge of the meaning of cause. Tautology. Truth by definition.
It would be like extending a continuous function definition, through an obvious dislocation. It’s a big divide by zero error.
DK
discontinuity=dislocation
DK