Ever since humans began to cooperate with each other around 30,000 years ago, we have carefully managed our identities to present an idealised version of ourselves: quite simply a version that we believe our peers will like. Until very recently, the only means by which to do this was face-to-face, via written correspondence or telephone. Owing to the ‘real world’ nature of these methods of communication, the groups of people we interact with are necessarily quite small, well-defined and discrete. Consequently, famous sociologists such as Michel Foucault, Anthony Giddens and Erving Goffman have favoured the idea that identity is flexible and multiple – that is, different depending on which audience we happen to be communicating with at any given time.
