All Origin theories/beliefs are nonsense
Where did the universe come from? Is there any possibility of a satisfactory answer? If God made the universe, where did God come from? If there was a Big Bang, where did it come from? The question repeats to infinity.
So, does the idea of a First Cause make any sense at all? In trying to trace events back through time like neatly ordered dominoes, might we be mistaking the very nature of causality?
Name an instance of simple cause and effect, where one and only one event leads clearly to one and only one outcome. Say a dog runs into a table and knocks over a glass of milk. For practical purposes, you treat it as cause and effect--the dog was the cause, spilled milk the effect. Or maybe you'll pick out a wobbly leg on the table, or a child chasing the dog. In any case, it's very useful, this view; you can discipline the dog or child, fix the wobbly leg, but is it an accurate account of what happened? Zeroing in on the dog and the glass of milk, our "cause and effect," we ignore the majority of what was happening: your spouse moved the table two inches to the left three days ago; the table was made in a factory 300 miles away that does mediocre work; the dog is part collie; you were talking to the neighbor. Gravity was drawing the glass toward the floor. It goes on forever, and not in just one direction. To be thorough, you can't stop short of everything, absolutely everything.
It's not necessary to think of all these things in relation to the spilled milk. It's quite handy that you've filtered the dog and the milk from all that background, and moreso if you're investigating a crime or diagnosing an illness, but if you're asking the Big Question, then what can you filter out? If you're asking about the whole universe, then what can you discard as irrelevant?
It's the wrong strategy. The universe didn't "come from" anywhere--it's still there, right here.
Do you disagree?