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About the Tai Chi; I think Micheal Phillips is being reasonable, a lot more reasonable than so many fakes out there. His stuff isn't so far fetched; he's merely following a belief that Chinese people have had for thousands of years. He's just demonstrating how the power of chi and the energy of the attacker can be used to rebound the attacker. Not some crazy mega no-touch "chi punch".
Someone on Youtube commented that they had practiced JuJitsu for (Insert # here) amount of years, and the hardest he's ever been punched was by Micheal Phillips. Sure he could
have set it all up, I'm just saying that there are crazier things in this world than that.