Itchy Feet

I forgot to add: game theory. This is sort of why I'm interested in poker, or Scrabble. Even somewhat in American football or baseball, where you might call a different play, or throw a different pitch depending on certain other game conditions. Game theory isn't so much about games themselves, so much as the mathematical analysis of "risk-reward" scenarios, all the way from playing rock-paper-scissors, up to military strategy. This stuff fascinates me.