I know this is going to get me in trouble, but I'll say it: The whole notion that I am supposed to constantly tweet is ridiculous. There are a lot of journalists at the New York Times who tweet. I am not opposed to it. But I don't have enough time. And editors don't have much to say. My world consists of this office, this floor, my apartment and wonderful conversations with our reporters and correspondents - all of them know a lot more about the world than I do.