Phil Birnbaum at Sabermetric Research writes about how people have things backwards; it's great to find out that you're wrong:
Let's suppose you open a restaurant, and you're very successful, and people like your food. You're very proud of being a great chef. Then, someone tells you, correctly, that one of your appetizers, one that you think is one of your best, is actually pretty awful. Your customers hate it.
Your first reaction might be to get defensive. But, again, you should be thrilled! Now you can fix that dish. Your food, your restaurant, your profit, and your reputation will all be better than before. It's almost the best thing that can happen to you. Being wrong is like winning the lottery!
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I guess my overall point is that any online discussion, even between people who violently disagree with each other, should be a co-operative venture. One of you is wrong, and you're working together to find out who. And, we should keep in mind that most of the benefit goes to the person who was actually wrong in the first place.
When someone you respect, or someone who seems to be expert and knowledgeable, starts disagreeing with you, it's like you've stumbled upon a fistful of lottery tickets. Argue your position, yes, but don't get defensive, and keep an open mind. Sure, it might be that other guy who's wrong. But if you're really, really lucky, it'll be you.
Ah, OK.
That's a slightly different case, though, isn't it? The author is not saying "it's good news for Boston [fans]" because they now are right when they were wrong before, and now their map is more accurate. Rather, he's saying that it's good news for Boston [fans] because the state of the world in the "right" case means more future Boston success than the state of the world in the "wrong" case.
Suppose Bergeron was doing well instead of poorly, and the author argued that it's because the coach is playing him too much and he's going to get tired or injured. In that case, the author might argue "Is Bergeron being played on every power play when he used to be played only rarely? If the answer is yes, it's actually bad news for Boston, believe it or not."
In other words, the "good news" and "bad news" don't seem to refer to the desirability of the map matching the territory. In this particular context, they refer to the desirability of the territory itself.
Great point Phil! I didn't see that, that is an important difference in the cases.
I had mentally automatically interpreted your point "it's bad to be wrong. Therefore, if you're wrong, the best thing is to *stop being wrong*. And the way to stop being wrong is to change your mind." as a special case of his, "the state of the world in the 'was wrong/am right' case means more future success than the state of the world in the 'was wrong/still wrong' case."