[mehrdadn]

No comment on everything else I wrote beyond that 1 sentence? Your positions are quite contradictory, which is what I've been trying to explain in the entire comment.

[steveklabnik]

I just don't think we're going to get anywhere, but wanted to correct the assertion that I do not understand this aspect of UB.

[mehrdadn]

I mean, your positions are contradictory, but sure.