Re: Is ki just good physics?
Yeah, what Gerardo said. Ki's certainly physical--if you accept the mind as physical, and the mind's affect on the body as physical--and the affects of aiki are surely also physical in the same way.
But if you think of it as physical, you're likely to think of levers and muscular motion, which will never get you to aiki. "Aligned," for example, will make you think of lining up your structure to resist a push--which is totally ineffective from the martial point of view. So instead, there are all these impractical visualizations which can't really happen but which *will* get you to aiki.
The black rose does not exist. Believe, therefore, in the black rose.