[SketchySeaBeast]

You're right - that's not a terribly well thought out argument. They should have said:

"I don't believe in any deities existence as such a claim would require extraordinary evidence. Not only have we been provided no extraordinary evidence, we have been provided no evidence at all, save possibly the very existence of creation itself, but we can safely reject the argument that a creator deity exists because creation exists due to the innate problem with first causes arguments - if you assume that everything must have a first cause, that first cause can't have had one, thus there isn't an innate requirement for a first cause, making first causes an argument against themselves. There being no evidence provided, therefore I can safely rejected the supposition that such a being would exist."

That would have made more sense.

[User23]

Yes, that does make more sense. Of course I would counter that the universe and our existing in it came to be out of random mindless chaos is also an extraordinary claim.

I’d state it as there must be a singular uncaused cause on account of the tree of causality has to have a root. We call that uncaused root of causality God. The refutation requires that we accept that some events have causes and some don’t and oh well no idea to really know which is which. Since the entire scientific and engineering endeavor relies on events having causes, I find that conclusion philosophically unsatisfactory.

[SketchySeaBeast]

If we don't assume a beginning or end, then we end up with infinite time, with infinite variations, and with that it's a pretty much certainty that this would exist as it does, for this iteration.

Science and Engineering rely on cause and event largely in mathematical abstractions - if we draw the line out far enough "why is that real ball moving through space" the answer stretches all the way back to the big bang, and we lack the ability to see what came before. From what I understand of current science - the theory is that it was due to a big crunch, which was due to a big bang - infinite loops in an infinite cycle.

Again though, you're saying that the singular uncaused occurred just because - in a system that otherwise must have a cause and effect that MUST have had a cause and effect, unless you decide to draw a special case for it, where I can see no reason why you would. It's basically a special pleading to jam god into a hole of knowledge, just like we used to do with demons and witches before we understood the real nature of diseases.