2013 may well be the year that biology trumps ideology – if not in attitudes to global warming (although perhaps that too) then in the increasing actuarial possibilities that both Fidel Castro and Hugo Chávez will soon die. Fidel Castro, the father of the Latin American left, is 86 years old and infirm. Hugo Chávez, his ideological son, is only 58-years old (and with a body that still looks like “packed concrete,” as Gabriel García Márquez once put it). But the Venezuelan president’s cancer condition is worsening. After 14 years in power, Chávez even went so far this past weekend as to endorse a possible successor – his vice president Nicolas Maduro.