The author argues for a significant social and cognitive transition between the Lower and Middle Palaeolithic in Europe. Between about 300 000 and 200 000 years ago, early Neanderthals developed stone working techniques which combined methods that were previously discrete, began to occupy high-relief terrain and to settle systematically the highly seasonal environments of central and eastern Europe – skill-sets here termed the ‘incorporation of difference’. These findings make us rethink the competence of pre-modern hominins and to review, in the author's words, ‘the boundaries we erect to police the uniqueness of humanity’.