So basically everyone's reply to "you can't use a potential world catastrophe as an excuse to not defend your doubt" was to reply with potential world catastrophes? Ok.
This is unfair, though. We're not talking about an alien attack, or Great Britain bombing Israel, or something equally ridiculous -- we're talking about things like the EU that have literally almost happened several times this year already. Yes, I agree that if nothing changes anywhere then Obama will almost certainly win, but things change all the time. The biggest danger to Obama is an economic crisis in the next two months, and that's still very much possible -- in fact, a portion of Nate's 30% is almost certainly pricing the chance of that in. (Which is partly why Intrade is still fifteen percent behind, because they're less confident about the Euro -- that and they're just more driven by partisanship.)