 Notice one consequence: If the facts about what fundamental particulars there are, and what perfectly natural properties and relations they instantiate, determine all other facts, then there is no reason to suppose that composite particulars—particulars that have other particulars as proper parts—ever instantiate perfectly natural monadic properties. (Of course, they can perfectly well instantiate the very-but-not-perfectly natural property of having parts that instantiate such-and-such a perfectly natural relation.) Thus, if, for example, my laptop has a mass of 3 kg, that is so only in a slightly derivative sense: the laptop is composed of parts whose masses add up to 3 kg.