Even knowing all the problems Bitcoin is facing and he is going to face, and even knowing it's very difficult for common folk to own Bitcoin.. he's not just being stubborn. He's losing the little credibility he has. He should just admit his mistake and admit that nothing like Bitcoin has appeared till today which would question Economy's theories.
I think some of these economists and Finance people are kind of like Butthurt because they were not the ones coming up with Bitcoin, solving some economic and finance problems.
So they are acting like "Know it all" people that dismiss Bitcoin as Nerd's money. Kind of like those who dismissed the internet, MP3, P2P, Facebook, you name it.
Hah,
While I think bitcoin is innovative, I won't compare it to facebook or other social networking sites. Facebook is over value and doesn't solve any problems that can't be solved using other methods.