Scientific American

Loops, Trees and the Search for New Physics : Article : Scientific American: In recent years the three of us and our colleagues have developed a new way of analyzing particle processes that bypasses the complexity of Feynman's technique. Called the unitarity method

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I'm not sure how this steps beyond this one: http://www.starsusa.org/equation.jpg so i guess I should ask them?  It seems it described in detail already here:  PUB. APP. NO.20070170306  Unity method
But I guess I can add some questions?

Like this seems like an easy - - or simplified - - concept, but over time  and space the "c" speed of light term is never constant.  Actually It's never constant through matter, so if matter and energy are equivalent anyway then the "c" fluctuates as making the derivation somewhat of a challenge.  And in fact I critically agree with the Unitarity Method principles, while the "Unity Method" may be better terminology . . .

I have a bottle of organic blueberry wine to wager that the exploration of unitarity method may be even more simplified with this equation.  The pressing question is that "c" varies through each medium, where resolving this likely will clarify completion.

How will allowing this fluctuation over space, time and matter in this equation change the derivation. .
I personally prefer the term Unity Methods but the resolution to this equation is more important.

Sincerely,

Eric R. Weaver
Graduate Student
University of South Florida