I understand these are just your opinions, same here. I am interested in that upon which folks base their opinions - that is how I learn of new thoughts/ideas/reasons and adjust my own.

To a reasoning person, someone's bare opinion without the reasoning behind it does them little good. In my opinion :-)

Yeah, some teachings call It (the Source of existence, "god", Universe, etc) the uncreate or the causeless (or prime) cause, unmoved mover, cause of cause, etc.

Even the experts dunno how the big bang banged itself ;-)

But I am unable, thus far, to think of anything REAL that definitively came from nothing. Nor can I think of any REAL that has beginning/end but no end/beginning.

Doesn't mean to me that it can't happen, just that there is NO good experiential evidence to support it.

IMO