Theists: What is the most compelling argument you have heard for Atheism?

[SteveII]

I read the whole article. It does not support your assertion other than a theory (perhaps M-Theory), when it is formulated, can answer the question. That does not sound settled to me.

How did we get from your claiming that there is no debate that the physical constants can take on different values to this?  That the matter was not settled was my whole point.  You're simply agreeing with me.

I did some reading on M-theory. First, there is not one bit of physical evidence for it. Second, it posits as many as 10^500 different possible membranes (parallel universes) that could be right next to us. With that many universes--each with a different possibility of constants, it does not address the fine-tuning issue of why ours is the way it is. Third, it is not clear that whatever created the 'cosmic landscape' (multiverse?) would not have to have been finely tuned to create universes with laws and structure (kicking the can upstairs). Fourth, since it is very much in question whether the theory can ever be tested, isn't it just philosophy and not science?