Ninety miles separates Key West from Havana; across this strait, these two nations could not be more different. On one side, a superpower that throws away 40% of its food. On the other, a country that has spent thirty years perfecting how to grow food on scraps. Not the Cuba of cable news blackouts and empty shelves, but rather the Cuba that has been here before and knows exactly what to do about it. Three decades on, this same reflex is being asked to ignite again, for a dif