“In any parlance, the specific meaning of ‘normal’ has important consequences, especially if it is given a privileged position in the world. Anything that veers – from having green eyes or hearing voices to living with hydrocephalus – would be abnormal in one sense or another: uncommon, rare, atypical, potentially inadequate, suboptimal or deficient in some way – and in need of being brought back to some norm. Yet, it could be controversial, or just plain odd, to pathologise such variations; especially if they are functional in some way.”