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Hypothetical situation in which, for simplification, only some physical aspects are considered in order to further understand or reveal contradictions between the laws governing them.

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A Hidden Principle in Relativity

Let me give it a try, too. I would state the principle as follows. We assume, that an abstract reality exists, with an abstract notion of spacetime(*), abstract notions of energy, mass, momentum, fre …
akreuzkamp's user avatar