Thanks for the link.
The punch that he gave was 60 mph. That is a good punch. But as far as I know not exceptional. It seems that a speed like that is not uncommon in boxing or TKD, muay thai, etc.?
It's about more than velocity, but the nature of the mechanics -- what's behind the punch. I would be curious to see the researchers compare the amount of force created by the taichi punch and a TKD/muay Thai punch traveling at the same velocity and rate of acceleration, by individuals of the same general size and weight/body mass.