nshepperd comments on Consequentialism Need Not Be Nearsighted - Less Wrong

53 Post author: orthonormal 02 September 2011 07:37AM

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Comment author: asr 03 September 2011 03:30:53AM 3 points [-]

Similarly, the purported reductios of consequentialism rely on the following two tricks: they implicitly assume that consequentialists must care only about the immediate consequences of an action, or they implicitly assume that consequentialists must be causal decision theorists.

"TDT + consequentialism" seems like it isn't a consequentialist theory any more -- it's taking into account things that are not consequences. ("Acausal consequence" seems like an oxymoron, and if not, I would like to know what sort of 'acausal consequences' a TDT-consequentialist should consider.) This feels much more like the Kantian categorical imperative, all dressed up with decision theory.

Comment author: nshepperd 03 September 2011 07:36:16AM *  4 points [-]

For an example of acausal consequences: getting a million dollars as a result of one-boxing in Newcomb's. Or getting a hundred dollars as a result of two-boxing.

I would argue that TDT (or UDT) is actually a more consequentialist theory than CDT. The qualitative difference between consequentialism and deontology is that for consequentialists the most important thing is a good outcome, whereas deontology means following the correct rules, regardless of the outcome. But it's casual decision theorists, after all, that continue to adhere to their decision ritual that two-boxes, and loses, in the face of all the empirical evidence (well, hypothetical empirical evidence, anyway :p) that it's the wrong thing to do!