Do you mean "I cooperate with the Paperclipper if AND ONLY IF I think it will one-box on Newcomb's Problem with myself as Omega AND I think it thinks I'm Omega AND I think it thinks I think it thinks I'm Omega, etc." ? This seems to require an infinite amount of knowledge, no?
Edit: and you said "We have never interacted with the paperclip maximizer before", so do you think it would one-box?
I think he means "I cooperate with the Paperclipper IFF it would one-box on Newcomb's problem with myself (with my present knowledge) playing the role of Omega, where I get sent to rationality hell if I guess wrong". In other words: If Elezier believes that if Elezier and Clippy were in the situation that Elezier would prepare for one-boxing if he expected Clippy to one-box and two-box if he expected Clippy to two-box, Clippy would one-box, then Elezier will cooperate with Clippy. Or in other words still: If Elezier believes Clippy to be ignorant...
Followup to: The True Prisoner's Dilemma
For everyone who thought that the rational choice in yesterday's True Prisoner's Dilemma was to defect, a follow-up dilemma:
Suppose that the dilemma was not one-shot, but was rather to be repeated exactly 100 times, where for each round, the payoff matrix looks like this:
As most of you probably know, the king of the classical iterated Prisoner's Dilemma is Tit for Tat, which cooperates on the first round, and on succeeding rounds does whatever its opponent did last time. But what most of you may not realize, is that, if you know when the iteration will stop, Tit for Tat is - according to classical game theory - irrational.
Why? Consider the 100th round. On the 100th round, there will be no future iterations, no chance to retaliate against the other player for defection. Both of you know this, so the game reduces to the one-shot Prisoner's Dilemma. Since you are both classical game theorists, you both defect.
Now consider the 99th round. Both of you know that you will both defect in the 100th round, regardless of what either of you do in the 99th round. So you both know that your future payoff doesn't depend on your current action, only your current payoff. You are both classical game theorists. So you both defect.
Now consider the 98th round...
With humanity and the Paperclipper facing 100 rounds of the iterated Prisoner's Dilemma, do you really truly think that the rational thing for both parties to do, is steadily defect against each other for the next 100 rounds?