Of course, all of us have heard about one of the President’s favorite maxims, “the perfect is the enemy of the good,” with its implication that practicality most often calls for us to forego our attempts to reach a hard to achieve or impossible ideal, in favor of acting to achieve a good result that, while not ideal; certainly represents an improvement in our current situation. It’s very hard to disagree with a proposition like that; but while there’s nothing wrong with the idea behind it; the devil is in the details of how you apply it.