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

[Neo-Scholastic]

What are you talking about? As in my example of billions of white balls and one black ball in a drawing and I not only see the black ball come down the shoot, but it does so 5 times in a row in 5 subsequent drawings, I think it very reasonable to infer that it was fixed.

Except that, for all we know, they're all black balls.

Not to strain the analogy, but that would be all the more fine-tuning.

(then of course there is the universe of all blue balls...not anyone's favorite)