This is a great exercise. The purpose is just to get your fingers "to go". No phrasing is present here; just a stream of notes to get your fingers to be able to keep going. Naturally, you should combine this exercise with real phrasing and some rests, of course. I like to practice this way for a while, then when my fingers can "go", I start focusing on real phrasing and melodic lines.
The Law of Gravity is nonsense. No such law exists. If I think I float, and you think I float, then it happens.
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