维基百科：https://en.wikipedia.org/wiki/Doubly_special_relativity
Doubly special relativity[1][2][3] (DSR) – also called deformed special relativity or, by some, extra-special relativity – is a modified theory of special relativity in which there is not only an observer-independent maximum velocity (the speed of light), but an observer-independent maximum energy scale and minimum length scale (the Planck energy and Planck length).[4]
