We spend a lot of time on this blog debating what Judaism and being Jewish means to us.  Or at least, what it could or should mean.  To you.  But the Godol Hador of the JBlogs asks a foundation question: Is there anything to this whole Judaism thing? Can you prove it?
He questions the common “proofs” for Judaism. In fact, he disputes eleven categories of “proofs” in summary form, conceding that though he spent

…many months arguing with the skeptics, and writing mega chizuk posts which contained all sorts of arguments proving Judaism and the existence of God[…] ultimately I found my opponents arguments more convincing than my own.

On the bright side, he concludes that the sum of some of these “proofs” may offer at least theological comparative advantage.  Which is really all most of us outside the Haredi world believe anyway.