Sure.\n\nBut the genius is the fact that when you declare you are definitely choosing Steal (and will share afterwards) the other guy either chooses to *spite* you (and leaves with nothing) or chooses to *trust* you (and *maybe* gets half if you keep your promise).\n\nMeaning: by declaring Steal you are simplifying the choice for the other guy - to get any money at all he *has* to choose Split.\n\nThat is, unless everyone is Sicilian.