Amanojack comments on Metacontrarian Metaethics - Less Wrong

2 Post author: Will_Newsome 20 May 2011 05:36AM

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Comment author: Amanojack 25 May 2011 10:52:21PM 0 points [-]

Is this basically saying that you can tell someone else's utility function by demonstrated preference? It sounds a lot like that.

Comment author: endoself 26 May 2011 05:25:45PM 1 point [-]

No, because people are not completely rational. What I 'really' want to do is what I would do if I were fully informed, rational, etc. Morality is difficult because our brains do not just tell us what we want. Demonstrated preference would only work with ideal agents, and even then it could only tell you what they want most among the possible options.