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F2 for two forces) becomes F1×D1² = — F2×D2² (thus, Action ≠ — Reaction, when D1≠D2) when time dilation around the objects/forces is accounted for. For example, the Sun attracts the Earth stronger than the Earth attracts the Sun (because D1=1.000002 for the Sun, D2=1.0000000007 for the Earth).