I’m confused about EDT and Smoking Lesion. The canonical argument says: 1) CDT will smoke, because smoking can’t cause you to have the lesion or have cancer 2) EDT will not smoke, because people who smoke tend to have the lesion, and tend to have cancer.
I’m confused about 2), and specifically about “people who smoke tend to have the lesion”. Say I live in a country where everybody follows EDT. Then nobody smokes, and there is no correlation between smoking and having the lesion. Seems like the “people who smoke tend to have the lesion” is pumping a misleading intuition. Maybe mortals who make probabilistic decisions and smoke are then more likely to have the lesion. But it’s not true that EDT’ers who smoke tend to have the lesion, because EDT’ers never smoke.
Seems like EDT contains a conflict between “model your actions as probabilistic and so informative about lesion status” versus “model your actions as deterministic because you perfectly follow EDT and so not informative about lesion status”.
Aha wait I think I un-confused myself in the process of writing this. If we suppose that having the lesion guarantees you’ll smoke, then having the lesion must force you to not be an EDT’er, because EDT’ers never smoke. So the argument kind of has to be phrased in terms of “people who smoke” instead of “EDT’ers who smoke”, which sounds misleading at first, like it’s tricking you with the wrong reference class for the correlation. But actually it’s essential, because “EDT’ers who smoke” is a contradiction, and “people who smoke” roughly translates to “decision theories which smoke”. With a deterministic decision theory you can’t take action counterfactuals without a contradiction, so you have to counterfact on your whole decision theory instead.
My personal model is “if you have lesion, with some small probability it takes over your mind and you smoke anyway, also you can’t distinguish whether your decision is due to lesion”
I’m confused about EDT and Smoking Lesion. The canonical argument says:
1) CDT will smoke, because smoking can’t cause you to have the lesion or have cancer
2) EDT will not smoke, because people who smoke tend to have the lesion, and tend to have cancer.
I’m confused about 2), and specifically about “people who smoke tend to have the lesion”. Say I live in a country where everybody follows EDT. Then nobody smokes, and there is no correlation between smoking and having the lesion. Seems like the “people who smoke tend to have the lesion” is pumping a misleading intuition. Maybe mortals who make probabilistic decisions and smoke are then more likely to have the lesion. But it’s not true that EDT’ers who smoke tend to have the lesion, because EDT’ers never smoke.
Seems like EDT contains a conflict between “model your actions as probabilistic and so informative about lesion status” versus “model your actions as deterministic because you perfectly follow EDT and so not informative about lesion status”.
Aha wait I think I un-confused myself in the process of writing this. If we suppose that having the lesion guarantees you’ll smoke, then having the lesion must force you to not be an EDT’er, because EDT’ers never smoke. So the argument kind of has to be phrased in terms of “people who smoke” instead of “EDT’ers who smoke”, which sounds misleading at first, like it’s tricking you with the wrong reference class for the correlation. But actually it’s essential, because “EDT’ers who smoke” is a contradiction, and “people who smoke” roughly translates to “decision theories which smoke”. With a deterministic decision theory you can’t take action counterfactuals without a contradiction, so you have to counterfact on your whole decision theory instead.
Neat :)
My personal model is “if you have lesion, with some small probability it takes over your mind and you smoke anyway, also you can’t distinguish whether your decision is due to lesion”