Originally Posted by Ramon
You got that right. Those athletes with normal legs have a big advantage over him, so it's not a level playing field!
Those blades are only sufficient to allow him to run normally and safely. They do nothing beyond that to give him an advantage. There are bionic legs out there with their own source of energy which would be disqualified if he were to use them. The doctors who gave him his artificial legs explained all that to the Olympic Committee, and they accepted their scientifically based explanation.
It's really not much different from a near-sighted tennis player wearing corrective lenses or a partially deaf player wearing a hearing aid. Neither of those gives anyone an advantage over a normal person.
Wearing glasses are using artificial legs are totally different things. Wearing glasses makes someone see normally, how can you possible say that those legs allow him to walk or run normally, i.e. exactly the same as if he had legs. You can't.
Glasses make someone see exactly the same as a person who doesn't have to wear glasses. Replacing limbs is a totally different thing from correcting sight and hearing.