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mendel comments on Making Beliefs Pay Rent (in Anticipated Experiences) - Less Wrong

110 Post author: Eliezer_Yudkowsky 28 July 2007 10:59PM

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Comment author: mendel 19 May 2011 01:22:14PM *  1 point [-]

An explicit belief that you would not allow yourself to hold under these conditions would be that the tree which falls in the forest makes a sound - because no one heard it, and because we can't sense it afterwards, whether it made sound or not had no empirical consequence.

Every time I have seen this philosophical question posed on lesswrong, the two sophists that were arguing about it were in agreement that a sound would be produced (under the physical definition of the word), so I'd be really surprised if you could let go of that belief.

Comment author: Manfred 20 June 2011 01:09:12AM 1 point [-]

Hm, yeah. The trouble is how the doctrine handles deductive logic - for example, the belief that a falling tree makes vibrations in the air when the laws of physics say so is really a direct consequence of part of physics. The correct answer definitely appears to be that you can apply logic, and so the doctrine should be not to believe in something when there is no Bayesian evidence that differentiates it from some alternative.