Sun Tzu said in the Art of War: As for the disease of rushing water, as for the boulders, it is potential; as for the disease of birds of prey, as for the destruction, it is also the festival.
That is to say, the reason why the turbulent water can move the boulder is because it produces the potential energy of huge impact force; the reason why the bird of prey can kill the opponent in one fell swoop is that it has the most favorable impact force for the explosion. time.
There is also a last sentence in this article [The Fifth of Soldiers]: Therefore, a person who is good at fighting is like turning a round stone into a thousand.
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