Is Everything Beginning to Exist a Cause?

Craig Smith: The argument itself doesn't tell you what kind of cause the universe has. It's only when you analyze, well, what is it to be a cause of space and time, matter and energy that you get to the conclusion that this doesn't have a material cause in the typical sense. So again, that's treating material cause like a physical cause, right? You could have had God creating the universe out of some non physical material cause, some ectoplasm or some pretty existing stuff. He says if your argument allows for something to begin existing with a material cause without an efficient cause, it becomes inexplicable why things don't just begin to exist with material causes without efficient causes