radical_negative_one comments on Reacting to Inadequate Data - Less Wrong
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Comments (21)
From the LessWrong wiki: "I don't know"
If we don't know anything about which is more likely, but there are only two options, then i think you're left to just assign a 50% chance to each. Here, the characters are prompted for a discrete action, so both guesses are the same.
And they have to do something, because even refusing to circle an answer is a course of action. It's just that in this case we don't have any reason to be very confident in any specific choice.
EY's "I don't know." is an interesting way of treating open-ended scenarios. Does it apply to "pick Red or Green"? This isn't strictly what you linked to, I suppose, so that may not be relevant to what you were trying to say.
So, when asking for an action, wouldn't "do nothing" be included in the choices? In other words, the three options are "Pick Red", "Pick Green", "Do nothing", and Alice and Bob choose randomly from those three?