Anyway, looking back over his own blogging career Sullivan notes how much of it has been about the Iraq War:
When I look back on the stumbling, reversed, jagged path I found myself taking with you over the past decade, it is the war that looms largest. It showed me the callowness of neoconservative certainty – a certainty I drank as solace in the lost shadow of the two towers, the falling of which propelled this blog into a very public space. It showed me the wisdom of a deeper conservatism that should have recognized the utopianism of the Iraq folly from the get-go. It showed me the depth of human evil in the dark recesses of al Qaeda and Zarqawi and now ISIS. And it showed me that merely dramatically opposing this evil is not enough to stop it – and may even unwittingly embolden and strengthen it.This is to me one of the most important things about human life -- we have to keep growing and changing. Once when he was accused of flip-flopping, essayist Tony Judt said, "When the facts change, I change my mind. What do you do?"
It robbed me of illusions – the first being that the United States never tortures prisoners.
It denied me any intellectual safe haven, as my delusions fell from my eyes in slow motion.
It revealed an ugly side to me, in the aftermath of 9/11, that I now see with revulsion and embarrassment.
It shook me out of moral complacency and shallow absolutes.
The bane of political life is people who settle on one set of beliefs and hold to them no matter what. For most of the past decade Sullivan has been waging war against people who refused to see that the militaristic policies they and he supported in the early 2000s had been a moral and practical disaster, who continued to support more wars and interventions (Syria, Libya, Yemen) despite failures that ought to have embarrassed them into silence. There are many other such stubborn fools, from the people who think tax cuts always increase economic growth to people who think more education will solve all our social problems. I think that these days most of them are on the right, which is why I find myself trending ever more leftward.
The world is constantly changing. If we wish to have any sort of wisdom, we must keep up. To do this without surrendering our core moral beliefs and core judgments is difficult, but that is the task that anyone with a mind is compelled to attempt.