Good comment. I smiled at the sheer simplicity of injecting randomness to mitigate the >95% in order to deter exploitation. Of course it would be an interesting experiment to conduct and compare results against.

Also regarding your racecar example; they've gotten so good at making them go fast they actually are required to have restrictor plates (http://en.wikipedia.org/wiki/Restrictor_plate) so this fits the example of exploiting a well-defined goal to the point it's no longer competitive/safe/fun.

I find that quite amusing and cool. (I don't follow the sport I just like watching science-type shows on tv)