Hercules cleaned the Augean Stables in one day but wouldn't have lasted two. He was a big husky overfed guy who would have died of heart disease if Zeus had not called him home in early middle age. By contrast: fortified by their low calorie nutrient-dense diet, Biosphere 2's eight crew members performed the 80-hour work-week Herculean task of running a complete miniworld for two whole years. Visitors looking in through the glass thought the crew members were close to starving; but to them, Earth's outside inhabitants seemed bloated: "Look at all those puffy faces staring in at us", they cried!