Do oscar pistorius's prosthetic legs make him faster? that probably depends on whether you take two-leggedness as the baseline

In a few minutes, it will be midnight. I am sitting on the balcony of my rented san juan apartment. I just finished reading the IAAF report thwarting the olympic ambitions of oscar pistorius, the south african sprinter whose spirit has captured the imagination of the 24 students I am here to teach.

We started our three-week exchange seven days ago in Ottawa, where 12 of my University of Ottawa law students hosted 12 students from universidad de puerto rico. Together, these two dozen outstanding students are enrolled in a course that I call "building better humans?" (please note the question mark in the title.)

One of the goals of this interdisciplinary course is to illuminate the murky line between therapy and enhancement in a world that seems to be drifting from "natural selection" toward what bioethicist John Harris calls "deliberate selection."

What happens to people when science and technology are aggressively used to alter the human condition? What does the future hold for health and humanity as we move from Darwinian evolution to self-directed enhancement medicine?