And what that basically means is it's free of water. We don't have hydroxyl groups attached onto the fatty acids like we do, for instance, in glycogen. And what that means is water molecules will not tend to associate with fatty acid chains. And what that means is the fatty acids will be a much more concentrated form of energy storage than glycogen. In fact, for 1 gram of glycogen, there are about 2 grams of water that associates with that gram of glycogen. Why?