no, chi and centrifugal force do not really exist. But because everything we percieve is essentially a metaphor, a model of reality, sometimes chi or loosy goosey uses of the word 'energy' really can be a valid heuristic for the things that you can do to optimise your 'ability to do work'. As long as you remember its a vague, subjective, context restricted heuristic, and don't try shooting chi bullets, I say max your chi flow friend.