If I have it right, subject of the said video is about momentum, force flow, snake engine and all that jive.
Navin is one of your strongerst supporter, it's cowardly of you to cut him off at the knees instead of giving him your back.
Disagree with Navin is in essence disagreeing with you, I (we) haven't the need to prove anything by up loading long winded video on things any competent WC practician should have already figured out.
Lol.
Save your logic for yourself. Not interested . Thanks but no thanks!