If you just do it the straightforward way, any option you can choose would have a non-zero probability of producing an outcome with “unknown” or NaN utility. If multiply those two numbers together you get NaN, then if you add that to other probability*utility values as part of your expected utility computation you will end up with NaN as your final expected utility. I don’t see how to avoid this, hence my question.
Does it help to propagate “unknown” through computations by treating it like NaN? Or would that tend to turn the answer to every question into NaN?
If you just do it the straightforward way, any option you can choose would have a non-zero probability of producing an outcome with “unknown” or NaN utility. If multiply those two numbers together you get NaN, then if you add that to other probability*utility values as part of your expected utility computation you will end up with NaN as your final expected utility. I don’t see how to avoid this, hence my question.