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by octoboto 2404 days ago
>A fun question: how does the universe change if the mass isn’t a scalar, but rather is a matrix, and so a = m-1F is the acceleration? What would this world look like? Is it plausible?

m is only a scalar for particles though? For a general rigid body mass is a matrix. Unless they specifically mean for translational degrees of freedom, in which case I think that would probably break symmetry