martial arts which include live sparring: As well as encouraging analogies to rationality study, they teach the application of planned strategies under conditions which are sub-optimal for quiet contemplation. As the illustrious sage Tyson has said, "everybody has a plan, until they get punched in the mouth."

I'm not sure if there are any significant epistemic benefits to be gained, aside, perhaps, from practice using non-reductionist models (ie, chi) without accepting their premises.