[PatrickHenry]

Even if I accept this [Just because cause and effect happens in our experience is no reason to suppose there has to be an ultimate cause outside of our experience], there's also no reason to suppose otherwise. Do you agree?

You didn't address that post to me, but your question has gone unanswered so far. I don't agree with you at all. If you want to propose an "ultimate cause outside of our experience," you should have some reason for making such a proposal, other than "Hey, why not?".

[Sabertooth]

If you want to propose an "ultimate cause outside of our experience," you should have some reason for making such a proposal, other than "Hey, why not?".

Funny, all I've done was question random processes as the ultimate cause of our existence.

And I haven't seen a much better defense of them than "Hey, why not?"