Like snowflakes falling from the sky, each of us is unique in our place on this earth. Even identical twins are unique. 1 So what does it mean to be “unique”? It means that we are one of a kind – though not sui generis. The “kind” is Homo sapiens. But we are all singularly different. What are we to make of this difference? Is it a mere fact? Can some facts entail value? Can some values entail rights and duties? These are just a few of the central questions concerning public policy and disability.