JoshuaZ comments on What is bunk? - Less Wrong

20 [deleted] 08 May 2010 06:06PM

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Comment author: JoshuaZ 08 May 2010 09:52:51PM 1 point [-]

You may be putting to much emphasis on what people would be predisposed to believe. While when evaluating our own probability estimates we should correct for our emotional predispositions, it in no way says anything substantive about whether a given claim is correct or not. Tendencies to distort my map in no way impacts what the territory actually looks like.

Comment author: rwallace 08 May 2010 10:03:44PM 0 points [-]

Sure, at the end of the day there is no reliable way to tell truth from falsehood except by thorough scientific investigation.

But the topic at hand is whether, in the absence of the time or other resources to investigate everything, there are guidelines that will do better than random chance in telling us what's promising enough to be worth how much investigation.

While the heuristic about predisposition to believe falls far short of certainty, I put it to you that it is significantly better than random chance -- that in the absence of any other way to distinguish true claims from false ones, you would do quite a bit better by using that heuristic, than by flipping a coin.