The graceful-exit problem

There's an old physics joke about the stages of the reception of a new idea: first it's considered to be wrong, then it's considered to be trivial, before finally people are claiming that it was their idea first. Some of our more colorful colleagues have even mastered the art of claiming all three at once! The question of whether or not we should expeditiously withdraw from Iraq seems to be working through the stages of this joke. Hilzoy at Obsidian Wings points to an especially amusing example. Joe Biden (who, I think people on all sides can agree, is a craven opportunist if ever there was one) writes an editorial calling for a timetable for withdrawal. Right-wing hacks in the blogosphere and elsewhere jump all over the poor Senator, questioning his manhood and patriotism. Meanwhile, the White House congratulates Biden for coming up with a plan that was remarkably similar ...