 Note that this is not a claim about what causally explains disability; rather, it is a claim about what aspects of the phenomena of disability should serve as the object of explanation in social scientific theories of disability. As such, the affirmational model is prima facie consistent with either the medical or the social model, and indeed tends to draw on considerations from both. The diverse mix of advantages and disadvantages that characterize life with disability can derive from biological factors, social factors, or interactions between the two. On the side of advantage, a person with a disability like blindness might celebrate the increased attention sightlessness saves for hearing and other senses as well as the solidarity they experience with other disabled people as they fight together against ableism and for social justice. On the side of disadvantage, the affirmational model will point to the considerations some would regard as personal tragedies as, instead, a combination of purely functional challenges to be overcome, and conditions of social exclusion that can make life harder without thereby making it any less valuable or worth living.