Energy is energy. Since that is everything, to me, how I think of it as physical energy has made it easier for me to make the association between certain stances, mechanical motions for techniques, which can channel it better. I have found thinking of it like that has allowed me a much greater degree of control over it; but energy is just that, the undefinable ultimately, especially when it becomes something we arent just speaking of as a fighting mechanic, but also something which is spiritually pervasive throughout our art and being.
Kinetic energy is just, as a westerner, interpreting the esoteric definitions of chi. I just hope no one has walked away from this mistakenly thinking that, that is ALL I think 'chi' is.
This leads me to suspect SERIOUS deficiencies in your knowledge of ki and kinetic energy.
Also...
"Mechanical motions for techniques "
..as opposed to non-mechanical motions?
"Fighting mechanics "
You do NOT want to see what they can do with a socket wrench.
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