I thought about that the day after Biden was chosen, that something would make Democrats suddenly understand they’d picked the wrong guy and they’d find some way to replace him.

Now, someone else is wondering/predicting the same thing, but for another reason:

One month from now, the Palin pick has proven a bonanza for the McCain campaign. A large chunk of Hillary’s 18 million voters have been won over. Conservatives are unified and energized, and the previously-undiscovered “Maxim magazine vote” is suddenly giving McCain large margins among young males.

Joe Biden will disappear from the campaign trail, and we will later learn it was to see a doctor. A previously-undiscovered, vaguely ominous health issue will be discovered, and Biden will sadly announce that he cannot continue as Obama’s running mate. With a sudden need for a new one, Obama will turn… to Hillary Clinton.