KrazyWorgen (the guy below me) doesn't quite understand why nature allows disabilities in the first place. Sickle cell, the condition he claims to have, actually prevents malaria. The disease cannot attack sickle cells. Autism/asperger's may make somebody incapable of talking or understanding social behavior, but it may also give them superhuman musical or mathematical skills. Many disabilities are trade-offs. Eugenics is a good idea only in rare cases where there is absolutely no benefit to the disability.
Anyway, the game was awesome.