This is a thought that occured to me on my way to classes today; sharing it for feedback.
Omega appears before you, and after presenting an arbitrary proof that it is, in fact, a completely trustworthy superintelligence of the caliber needed to play these kinds of games, presents you with a choice between two boxes. These boxes do not contain money, they contain information. One box is white and contains a true fact that you do not currently know; the other is black and contains false information that you do not currently believe. Omega advises you that the the true fact is not misleading in any way (ie: not a fact that will cause you to make incorrect assumptions and lower the accuracy of your probability estimates), and is fully supported with enough evidence to both prove to you that it is true, and enable you to independently verify its truth for yourself within a month. The false information is demonstrably false, and is something that you would disbelieve if presented outright, but if you open the box to discover it, a machine inside the box will reprogram your mind such that you will believe it completely, thus leading you to believe other related falsehoods, as you rationalize away discrepancies.
Omega further advises that, within those constraints, the true fact is one that has been optimized to inflict upon you the maximum amount of long-term disutility for a fact in its class, should you now become aware of it, and the false information has been optimized to provide you with the maximum amount of long-term utility for a belief in its class, should you now begin to believe it over the truth. You are required to choose one of the boxes; if you refuse to do so, Omega will kill you outright and try again on another Everett branch. Which box do you choose, and why?
(This example is obviously hypothetical, but for a simple and practical case, consider the use of amnesia-inducing drugs to selectively eliminate traumatic memories; it would be more accurate to still have those memories, taking the time and effort to come to terms with the trauma... but present much greater utility to be without them, and thus without the trauma altogether. Obviously related to the valley of bad rationality, but since there clearly exist most optimal lies and least optimal truths, it'd be useful to know which categories of facts are generally hazardous, and whether or not there are categories of lies which are generally helpful.)
Quite a detailed analysis, and correct within its assumptions. It is important to know where Omega is getting it's information on your utility function. That said, since Omega implicitly knows everything you know (since it needs to know that in order to also know everything you don't know, and thus to be able to provide the problem at all), it implicitly knows your utility function already. Obviously, accepting a falsehood that perverts your utility function into something counter to your existing utility function just to maximize an easier target would be something of disutility to you as you are at present, and not something that you would accept if you were aware of it. Accordingly, it it a safe assumption that Omega has based its calculations off your utility before accepting the information, and for the purposes of this problem, that is exactly the case. This is your case (2); if a falsehood intrinsically conflicts with your utility function in whatever way, it generates disutility (and thus, is probably suboptimal). If your utility function is inherently hostile to such changes, this presents a limitation on the factset Omega can impose upon you.
That said, your personal answer seems to place rather conservative bounds on the nature of what Omega can do to you. Omega has not presented bounds on it's utilities; instead, it has advised you that they are maximized within fairly broad terms. Simialrly, it has not assured you anything about the relative values of those utilities, but the structure of the problem as Omega presents it (which you know is correct, because Omega has already arbitrarily demonstrated it's power and trustworthiness) means you are dealing with an outcome pump attached directly to your utility function. Since the structure of the problem gives it a great deal of room in which to operate, the only real limitation is the nature of your own utility function. Sure, it's entirely possible that your utility function could be laid out in such a way as to strongly emphasize the disutility of misinformation... but that just limits the nice things Omega can do for you, it does nothing to save you from the bad things it can do to you. It remains valid to show you a picture and say 'the picture you are looking at is a basilisk; it causes any human that sees it to die within 48 hours'. Even without assuming basilisks, you're still dealing with a hostile outcome pump. There's bound to be some truth that you haven't considered that will lead you to a bad end. And if you want to examine it in terms of Everett branches, Omega is arbitrarily powerful. It has the power to compute all possible universes and give you the information which has maximally bad consequences for your utility function in aggregate across all possible universes (this implies, of course, that Omega is outside the Matrix, but pretty much any problem invoking Omega does that).
Even so, Omega doesn't assure you of anything regarding the specific weights of the two pieces of information. Utility functions differ, and since there's nothing Omega could say that would be valid for all utility functions, there's nothing it will say at all. It's left to you to decide which you'd prefer.
That said, I do find it interesting to note under which lines of reasoning people will choose something labelled 'maximum disutility'. I had thought it to be a more obvious problem than that.
Wire-heading, drug-addicition, lobotomy, black-box, all seem similar morally to me. Heck, my own personal black box would need nothing more than to have me believe that the universe is just a little more absurd than I already believe, that the laws of physics and the progress of humanity are a fever-dream, an hallucination. From there I would lower my resistance to wire-heading, drug-addiction. Even if I still craved the "truth" (my utility function was largely unchanged), these new facts would lead me to believe there was less of a possibilit... (read more)