Aimee Mullins’ guest columns at Gizmodo continue with an excellent discussion of the use of prosthetics in competition.

Basically, she points out that it was totally kosher for people like Oscar Pistorius and herself to compete in regular track-and-field events — right up to the point where they might win, at which point they were DQ’d for having an unfair advantage despite the fact that even advanced prosthetics pale in comparison to the real thing. So far.

Mullins also points out where we may be going: What if paralympic sprinter times are lower than regular, able-bodies sprinter times?