91 One idea that might be worth exploring is that in anthropic reasoning one should use a rule which one thinks will maximize the fraction of all observer-moments applying it that will be right. If many of the different observer-moments in the Big-World cosmology case (including both many of those observing CBR = 2.7 K and those observing CBR = 3.1 K) are said to be applying the same rule (and likewise the blackbeard and the whitebeard observer-moments in
.
.