 This central move by queer theorists, the claim that the categories through which identity is understood are all social constructs rather than given to us by nature, opens up a number of analytical possibilities. For example, queer theorists examine how fundamental notions of gender and sex which seem so natural and self-evident to persons in the modern West are in fact constructed and reinforced through everyday actions, and that this occurs in ways that privilege heterosexuality (Butler, 1990, 1993). Also examined are medical categories, such as ‘inverts’ and intersexuality, which are themselves socially constructed (Fausto-Sterling, 2000, is an erudite example of this, although she is not ultimately a queer theorist). Others examine how language and especially divisions between what is said and what is not said, corresponding to the dichotomy between ‘closeted’ and ‘out,’ especially in regards to the modern division of heterosexual/homosexual, structure much of modern thought. That is, it is argued that when we look at dichotomies such as natural/artificial, or masculine/feminine, we find in the background an implicit reliance upon a very recent, and arbitrary, understanding of the sexual world as split into two species (Sedgwick, 1990). The fluidity of categories created through queer theory even opens the possibility of new sorts of histories that examine previously silent types of affections and relationships (Carter, 2005).