Jack comments on Undiscriminating Skepticism - Less Wrong

97 Post author: Eliezer_Yudkowsky 14 March 2010 11:23PM

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Comment author: taw 15 March 2010 03:53:56PM 2 points [-]

You can tell someone is irrational if they don't believe global warming is happening.

It's not like a normal person can observe such changes - we're talking fraction of a degree over lifetime so far (Wikipedia says 0.74 ± 0.18 °C over entire 20th century).

It's a matter of your level of trust in "mainstream" scientists, and there's nothing particularly irrational about not having terribly much trust here.

And even global warming is real, it's still instrumentally rational to be wrong - let other people limit their carbon emissions, the world in which you drive SUV and everyone else overpays for Priuses is the optimal world for you to live in. (it would be even better to believe correctly in global warming, but be cynical enough to not give a shit about it, but many people have some sort of cynicism limit...)

Comment author: Jack 15 March 2010 04:51:34PM *  5 points [-]

it would be even better to believe correctly in global warming, but be cynical enough to not give a shit about it, but many people have some sort of cynicism limit...)

You don't have to be especially cynical, just recognize the situation as the collective action problem that it is. I'm not that cynical but I'm also not a dupe.

Also, not believing in global warming, if global warming is real, is likely to lead you to do stupid things like accepting certain bets on global mean temperature fifty years out and purchasing coastal properties. So I don't think it is instrumentally rational, either.