Feynman

I finally get Feynman diagrams! Of course it took Feynman to explain them because I just watched the Aukland University lecture tapes. Who better to do that?
If the diagram is projected across space and time then Feynman's own explanation of the positron and antiparticles in general seems to imply a reverse direction in time. Perhaps the implication and Feynman's own reluctance to engage upon that subject suggests that it is a gray area. 
Time's demonstrably unidirectional nature is, i beleive, nothing more than conservation of energy relating to entropy. To undo an entropic action would require the application of energy that must come from the universe in general so entropy is consequentially always increased no matter how litte actual "work" one does in a Sadi Carnot sense.
If however a feynman diagram were to be applied to space, that implies three dimensions and a fourth dimension not of time but an actual and concrete physical dimension of bidirectional values, then the Feynman diagram would take on a different aspect.
Imagine, given the technology of today's 3D graphics, a Feynman diagram as a full interactive 3D movie would afford views of the various interactions that would provide very different perspectives.
Looking down onto the top of a diagram to change the perspective on time or from the side to change 3D position might be a useful visualization tool.