^^^ inherently flawedEver hear of a little something called the Law Of Cause And Effect? Nothing happens without something else causing it to happen. So, genius, what caused the universe to exist? The only answer that makes any sense at all is that it was created...by a Creator. No other explanation even comes close.That's what we think, today.And never will know. The simple fact is that something that doesn't exist cannot create itself...because it doesn't exist. That's simple logic.That we currently know of.There is also the scientific fact that nothing physical can create itself.
I think that is the greatest argument in favor of Spiritual Nature.
Physical nature cannot have created itself.
The Universe, the potential multi verses, and all of the potential dimensions leave a lot of uncertainty in current human understanding.
Being so quick to dismiss possibility is hubris.