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Coscott comments on Functional Side Effects - Less Wrong Discussion

0 Post author: Coscott 14 January 2014 08:22PM

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Comment author: Coscott 14 January 2014 09:34:39PM 0 points [-]

Your action is probably dependent only on the output of the Omega function (including its output in counterfactual worlds).

Your action is not dependent only on the output of the function in the actual world.

We can model it as an effect of the function, but not as an effect of the output. I noticed this, which is why I put in the statement:

No, I took one box because of the function from my actions to states of the box. The side effect is no way dependent on the interior workings of Omega, but only on the output of Omega’s function in counterfactual universes. Omega’s code does not matter. All that matters is the mathematical function from the input to the output.

If we define side effect as relative to the one output of the function, then both examples are side effects. If we define side effect as relative to the entire function, then only the second example is a side effect.

Comment author: Coscott 14 January 2014 09:57:03PM 0 points [-]

Actually, I take that back, I think that both examples are side effects. Your output is a side effect of the Omega function, because it is not just a dependent on what Omega does on different inputs, it is also dependent on what Omega does in counterfactual universes.

I am confused by this issue, and I am not trying to present a coherent solution as much as I am trying to stimulate discussion on thinking outside of the input-output model of decision theory.