How did causality begin?
By causality said the Cheshire cat!!! Oh wait that's self referential And thus cannot be true. So then there is a something other than causality. The question becomes what is causing causes? And the Answer is that causes are causing causes which is circular and thus not true because it's self referential. So I might say there is a circular assumption in the question itself. But that is determined by the sub conscious and I can't do a thing about that, off limits to me by mother nature herself. All i can do is ask the questions and play a character in a Lewis Carol dialect. Annoying as that is. I say breathe, laugh, move the point of objectivity to its proper place, in the background state or landscape, play music make love.
Your answer is itself reductionist.
But you still did not even attempt to answer the question:
How did causality begin?
or better
Just give us one possible answer as to how causality could have begun?
But if all is causality, then causality has no reason to exist.
Seeing as though it does exist; the only conclusion is that
not everything is causality.
So an a-causal reason is: creativity.
I had hoped you'd figure that out.
I play upside-down left-handed nylon strings
and after 25 years, I am proud to admit that
I do not know the name of a single chord.
Its just more creative this way.
Its less like play-by-numbers
and more like
listening to the angels in the subconscious etheric many-colored land