 Buffon argued in 1777 that a rational decision maker should disregard the possibility of winning lots of money in the St. Petersburg game because the probability of doing so is very low. According to Buffon, some sufficiently improbable outcomes are “morally impossible” and should therefore be ignored. From a technical point of view, this solution is very simple: The St. Petersburg paradox arises because the decision maker is willing to aggregate infinitely many extremely valuable but highly improbable outcomes, so if we restrict the set of “possible” outcomes by excluding sufficiently improbable ones the expected utility will, of course, be finite.