The crane technique, complete Bullshit or effective attack?

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The 1984 cult classic martial arts film “The Karate Kid” displayed a fictional “secret” technique called the crane technique to which, according to the master portrayed by Pat Morita who admitted in spite of starring in karate kid 1-3, plus the “next karate kid”) that he himself knew nothing about martial arts.  was an “unstoppable move, and while it has since been proven that the action was “made-up” by the stuntman for Mr. Morita, Darryl Vida, whom did the fight scenes for Morita in the group fight scene after the costume party scene and was the person on the pole at the beach performing the crane technique and is a legitimate karate black belt who was the (karate kid) tournament participant who made all the flashy jumping kicks as a semi finalist near the films conclusion.  images (2)And even though he admits that the move was completely “made up” basically just a flashy version of a double switch front kick, the question has always  been asked… is that move,  effective against an opponent? beside the use of actually doing it like in the karate kid, waiting for you opponents to laugh at you and then hitting them in the balls and running 

Surprising enough, it is a legitimate attack that can win a fight and at the same time can be easily defended and can lose a fight.  How is this possible?  How can a “made-up”  fighting move be both effective against an opponant and easily cause defeat at the same time? Sound like a paradox?  check out the clips below for an explanation.  The first clip though choreographed from the insanely awesome film andKeanu Reeves directorial debut “Man of Tai Chi” and then watch MMA fighter Lyoto Machida currently ranked in the top ten fighter in the MMA world use the “crane technique” to finish a fight against hall of fame fighter Randy “the natural” Couture a five time UFC MAA champion and listen carefully to the commentary…