Board Thread:Questions and Answers/@comment-18812574-20150120153532/@comment-18812574-20150120194324

Well yes Z, all of them are forms of directing energy. In that they are the same.

Like I said, I think I like the concept of "projection" to explain how Hoho works. It is just a way to describe what we have already seen with Hoho, Shunpo specifically, but in a round-about way:

Speed, as already established, is the rate at which an object covers distance. A runner who takes longer, quicker strides is going to move a lot faster than someone who is, say, walking. But there is a limitation to how fast someone can move naturally. Factors like drag or friction aside, the biggest limiter is energy. The runner will, sooner or later, run out of energy. But these are Shinigami we are talking about. Like you said Z, they can direct the flow of energy.

So, conisdering all that, here's my theory: Hoho is the art of movement. It works by projecting a concentrated amount of reiryoku into one motion, vastly increasing the amount of energy expended on that one motion. Energy represents potential speed, the more energy behind a single motion, the faster that motion will be. If this is Hoho's basic mechanics, it could have several applications, Shunpo being the most obvious. But this could also explain how it is used so fluidly with hakuda, while still being distinct from hakuda.

@Dal/Jinsui: I would say a Shinigami could disrupt the flow of reishi under a person's feet, but not really "take it away." "Taking away" = absorption, which might be something a Quincy or a Fullbringer could do, but not Shinigami or an Arrancar, I think. They would use a different method for the same effect.