Russel Blackford is commencing a discussion of the defense of human enhancement. "As a species, we have reached a point in our history where we've developed sophisticated, and increasingly powerful, forms of technological intervention in the functioning of our own bodies. ... Future technologies may go much further than anything available today in enabling transformation, and even the redesign, of human minds and bodies." Greatly extending the healthy human life span through forseeable medical technology is an enhancement. We shouldn't forget that all the froth and noise over preventing people from manipulating their own bodies and property very much boils down to "allowed to live or not." Which should hopefully trigger a response along the lines of "who are these damn fools telling me how and whether I can live or not? To hell with them!" So much of what passes for deep philosophical and ethical thinking these days is rendered obviously silly if you start from the premise that you own your body, and are free to do as you will with it provided you do not harm others, provided you take responsibility for the consequences of your actions, financial and otherwise.