 One option for interpreting the “non-social entities” is that they include only the objects of physics, chemistry, biology, and other “hard sciences”. According to some theorists, even these are socially constructed and therefore fall on the social side of the division (Pickering 1984, Woolgar 1988). But even presuming that objects of the “hard sciences” are non-social, they may be inadequate for practical purposes as a characterization of the set of non-social things. After all, social theory aims to say more than merely that the social world is somehow built out of physical entities (see  section 3.1.4).  A variety of approaches to the building blocks of the social are discussed in  section 3.