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Change Without Change
In the fundamental equations, that's formulated as a symmetry. That says that if you change the equation by advancing time, the laws don't change. They might have changed, but in fact, they don't change. A einstein's theory of relativity is a very much deeper application of that kind of idea - although things will look different. It turns out that very symmetric laws are lawsr seem to be the laws that nature likes. Nature likes laws and like equations that support enormous possibilities for transformation.