Nick Szabo was interviewed for Let's Talk Bitcoin Ep. 246 (released yesterday). At the end they discussed the block size debate and the Bitcoin XT fork. Here's a short video with excerpts where he talked about the Bitcoin XT fork:
https://www.youtube.com/watch?v=u4_pPkIbGw4Here are two quotes:
Doing a contentious hard fork is not healthy. It's basically a 51% attack being justified through argument.
I'm just guessing to say that 75% is a large enough number that that forces the rest of the network comply. But if they don't...if you have an ongoing... This is essentially a civil war. It is technologically equivalent to a 51% attack what Hearn and Andresen are doing. And so you essentially have a civil war situation. It will certainly exercise all of Bitcoin's security features...let's put it that way...as any war would.
The full episode is available here:
https://letstalkbitcoin.com/blog/post/lets-talk-bitcoin-246-smart-contracts-with-nick-szaboIt was nice to hear a word from our sponsor.

Nick is obviously unhappy with Gavin's governance coup and attempt to change Bitcoin's mission parameters. There is reason why the Genesis Block mentions a second round of bank bailouts instead of, oh say, debit/credit surcharges for small purchases at Starbucks.
His (and Adam's) tone of late matches exactly that of the recent dev-list post from Satoshi, right down to the 'disappointed' theme.
But Bitcoin is stronger than ever thanks to XT's 'stress test.'
