On the subject of Caleb\’s CoinsMay 17, 2010 Tim WorstallblogsDelightfully done. If you\’re not reading him you should be. previousLord Treisman and game theorynextOn working at The Guardian Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment.