robzahra comments on Rationality is Systematized Winning - Less Wrong

48 Post author: Eliezer_Yudkowsky 03 April 2009 02:41PM

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Comment author: Technologos 03 April 2009 07:15:34PM 3 points [-]

I'm not sure how you can implement an admonition to Win and not just to (truly, sincerely) try. What is the empirical difference?

I suppose you could use an expected regret measure (that is, the difference between the ideal result and the result of the decision summed across the distribution of probable futures) instead of an expected utility measure.

Expected regret tends to produce more robust strategies than expected utility. For instance, in Newcomb's problem, we could say that two-boxing comes from expected utility but one-boxing comes from regret-minimizing (since a "failed" two-box gives $1,000,000-$1,000=$999,000 of regret, if you believe Omega would have acted differently if you had been the type of person to one-box, where a "failed" one-box gives $1000-$0=$1,000 of regret).

Using more robust strategies may be a way to more consistently Win, though perhaps the true goal should be to know when to use expected utility and when to use expected regret (and therefore to take advantage both of potential bonanzas and of risk-limiting mechanisms).

Comment author: robzahra 03 April 2009 10:55:43PM *  5 points [-]

I'm quite confident there is only a language difference between eliezer's description and the point a number of you have just made. Winning versus trying to win are clearly two different things, and it's also clear that "genuinely trying to win" is the best one can do, based on the definition those in this thread are using. But Eli's point on ob was that telling oneself "I'm genuinely trying to win" often results in less than genuinely trying. It results in "trying to try"...which means being satisfied by a display of effort rather than utility maximizing. So instead, he arguesn why not say to oneself the imperative "Win!", where he bakes the "try" part into the implicit imperative. I agree eli's language usage here may be slightly non standard for most of us (me included) and therefore perhaps misleading to the uninitiated, but I'm doubtful we need to stress about it too much if the facts are as I've stated. Does anyone disagree? Perhaps one could argue eli should have to say, "Rational agents should win_eli" and link to an Explanation like this thread, if we are genuinely concerned about people getting confused.

Comment author: timtyler 04 April 2009 05:06:29AM 2 points [-]

Eliezer seems to be talking about actually winning - e.g.: "Achieving a win is much harder than achieving an expectation of winning".

He's been doing this pretty consistently for a while now - including on his administrator's page on the topic:

"Instrumental rationality: achieving your values."

That is why this discussion is still happening.