This particular prediction cannot be tested (no observation could establish that the universe isat rest, even if it were), but it is impossible to change the equations of general relativity arbitrarily. They are tightly constrained by the explanatory substance of Einstein’s theory, which holds that gravity is due to the curvature of spacetime, that light has the same speed for all observers, and so on.
这一特定推测无法得到验证（即便宇宙真的陷入静止，也没有任何观测手段能确认这一点），但同时又不可能随意改动广义相对论的相关方程，因为它们都受到爱因斯坦理论中某些基本解释的限制，比如引力来源于时空的弯曲，对于所有观测者来说光速都是相等的等解释。