note 20
John Law and Vicky Singleton, writing about liver disease caused by alcohol abuse, describe objects as a set of relationships that both change and remain the same. Such an object can be a social relationship. Objects are characterized by patterns of presence and absence. Any presence equally implies absence and is also defined by what was present previously or will be absent later. The pattern of presence and absence signifies the transformation that an object goes through. (Law & Singleton 2005).