No other property has a useful life that compares with the life of land. Owners die, new ones succeed, but land goes on forever. Owners of goods may change their locations at will, but land is immovable. Being both permanent and immovable, it lends itself to the absorption of innumerable rights. Over the ages, this so impressed lawyers and jurists that they formed a separate body of laws for land. These laws, creating many types of rights in land, are so numerous and so complex it is impossible for there to be a mathematical certainty of ownership.