One thing vincent said, that most of us guys from fort collins are much stronger than he is...but we don't have the technique. He said if we had the same technique we could go higher because of our power.
At the top level, once we have thousands of riders trying to be that level, genetics will play a factor (right now we jsut have a few dozen riders riding at that level)...right now the balance between technique/mental/power is the most important thing for those at the top...many have technique and power, but not the mental aspect- or technique and a good mind but no power. Very few have mastered all 3.