CalmCanary comments on Utilitarianism and Relativity Realism - Less Wrong

-3 Post author: TruePath 23 June 2014 07:12PM

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Comment author: CalmCanary 22 June 2014 07:27:35PM 16 points [-]

You cannot possibly gain new knowledge about physics by doing moral philosophy. At best, you have shown that any version of utilitarianism which adheres to your assumptions must specify a privileged reference frame in order to be coherent, but this does not imply that this reference frame is the true one in any physical sense.

Comment author: bryjnar 23 June 2014 09:07:22PM 0 points [-]

You cannot possibly gain new knowledge about physics by doing moral philosophy.

This seems untrue. If you have high credence in the two premisses:

  • If X were a correct physical theory, then Y.
  • Not Y.

then that should decrease your credence in X. It doesn't matter whether Y is a proposition about the behaviour of gases or about moral philosophy (although the implication is likely to be weaker in the latter case).