Abstract

The literature on human enhancement is awash with discussions about whether it really would be desirable to increase our lifespan, cognitive power, physical strength above and beyond that which we currently consider to be healthy or normal. Almost all of these discussions hang on the question of whether it makes sense to draw a morally relevant distinction between those interventions that count as therapies and those that count as enhancements. Roughly, therapies are interventions that aim to restore health or normality to capacities or functions that are diseased or otherwise operating at a sub-normal level; enhancements aim to improve on the healthy or normal level of functioning. Focusing on the case of lifespan enhancement, Andrea Sauchelli considers the desirability of enhancement from a perspective that is independent of the debate about the therapy/enhancement distinction. His starting point is an argument from Walter Glannon, who holds that ‘deep life-extending...