Equality for lesbian and gay people is increasingly being treated as inevitable. This article questions this sense of inevitability by exploring three possible explanations: (1) a cynical explanation that the language of inevitability is being used as a rhetorical device, (2) a mechanical explanation that the impending equality is an effect of prior causes in time, and (3) a teleological explanation that history is progressing towards its purpose of achieving equality. The article concludes that invocations of inevitability do not stand up to theoretical scrutiny and explores what options are then open to equality activists.