You may happen to be 90% wrong on some domain-specific things, because you didn’t think about them very much, or because you started up a (popular and) deceptive blind alley. If the topic is controversial and high on your priority list to get right, it might be worth it to understand all sides who argue intelligently (according to more indirect cues), even if “obviously wrong”. Seeing the argument along with a theory of its origin helps to either find its invalid source, or a crucial point on which you might have been wrong all along. Both help in reevaluating the origins of your own belief.
@Stirling:
You may happen to be 90% wrong on some domain-specific things, because you didn’t think about them very much, or because you started up a (popular and) deceptive blind alley. If the topic is controversial and high on your priority list to get right, it might be worth it to understand all sides who argue intelligently (according to more indirect cues), even if “obviously wrong”. Seeing the argument along with a theory of its origin helps to either find its invalid source, or a crucial point on which you might have been wrong all along. Both help in reevaluating the origins of your own belief.