On the rationality of conversion (Part I)

Introduction In a recent article in this journal I sketched the outline of a theory which I suggested might help us to make sense of a large but puzzling accumulation of data relating to the ‘conversion’ of African peoples to Islam and Christianity. The theory evoked a vigorous critical response, also in this journal, from the Islamist Humphrey Fisher. In the present paper I shall reply to Fisher's criticism. In the process, I hope to show that the theory can be used to make sense of a range of data not carefully considered in my previous article.