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Still...can you find an example anywhere of non-causal existence?

In any case, what in the world can be a causal factor that is outside of matter, time, energy and space (aka reality)? As stated above, the only thing we can come up with is a disembodied mind/consciousness. It's the only logical thing we can find that fits the description.

Couple that with the incredible and unlikely fine tuning of the universe and anyone can naturally see that a fine-tuner is the most likely cause of what we call reality. Unless you believe that the symphony of physical harmony and tuning is just the process of time + chance. Which in my opinion, require more faith than most christian could muster.

"can you find an example anywhere of non-causal existence?"

This depends on how "causal" is defined; it's not like there exists a single definition since Aristotle. So no, even if it's impossible to show a thing that exists without a cause as it is understood in modern physics, it doesn't follow that God must have created the world.

"a causal factor that is outside of matter, time, energy and space (aka reality)?"

That's the problem here: we have no idea what (if anything) exists outside of observable reality. Thus we don't know what caused the Big Bang, was it a collapse of another universe, a collision of two other universes, or perhaps "God created the heavens and the earth". But even then, it's just the good ole God of the Gaps.

"Couple that with the incredible and unlikely fine tuning of the universe"

This presumes that the Universe we live in is the only one ever existing, and that it is really fine tuned. But is it? We don't really know again. In fact, for now it appears that we are fine tuned to live in this very unfriendly universe and on this very unfriendly world.

Jesus and the Universe