"CrossFit is in large part derived from several simple observations garnered through hanging out with athletes for thirty years and willingness, if not eagerness, to experiment coupled with a total disregard for conventional wisdom. Let me share some of the more formative of these observations:
1. Gymnasts learn new sports faster than other athletes.
2. Olympic lifters can apply more useful power to more activities than other athletes.
3. Powerlifters are stronger than other athletes.
4. Sprinters can match the cardiovascular performance of endurance athletes even at extended efforts.
5. Endurance athletes are woefully lacking in total physical capacity.
6. With high carb diets you either get fat or weak.
7. Bodybuilders can't punch, jump, run, or throw like athletes can.
8. Segmenting training efforts delivers a segmented capacity.
9. Optimizing physical capacity requires training at unsustainable intensities.
10. The world's most successful athletes and coaches rely on exercise science the way deer hunters rely on the accordion."