A short version of my position is online at The Forward, here.
The longer version is in the Post below this one. (Here)
A discussion of the possible lines of division is here.
Next week I'll start posting a series of short video films I've been taking on the putative line, demonstrating how hellish it really will be. There's a preview of that series, here.
I am now going offline for a few days. I've left enough stuff to keep you all busy, I think; feel free to slog it out in the comments, but I won't be reading them until next week.