Rational people can't improve decision-making ability by losing information, but irrational people can. For instance, I may be less likely to do the dishes if I

Rational people can't improve decision-making ability by losing information, but irrational people can. For instance, I may be less likely to do the dishes if I'm keeping score and realize I do them much more than my roommate, but if I don't keep score, I might only consider whether or not they need to be done when making the decision. Of course, you can't really justify such a thing if you're trying to make a rational argument.