A humble tuber, too often maltreated, unfairly considered a symbol of stupidity and a "poor food" meaning those who eat them do not have much money in their pockets. This is what the potato has stood for until now. However, it has suddenly become a star. They have discovered that enriched with selenium, with a fertiliser that has nothing to do with GMO, the potato fights against premature aging. It costs 10-20 cents more per kilo than a normal potato and is selling like hotcakes. Its inventor, Roberto Piazza of Bologna, does not know how to tell Dr. Faust, who has been searching for the elixir for long life for centuries, about his new discovery.