It was argued by Vainshtein two years later that the vDVZ discontinuity is an artifact of the linear theory, and that the predictions of general relativity are in fact recovered at small scales when one takes into account nonlinear effects, i . e ., higher than quadratic terms in h _ { \ mu \ nu }.
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Given that that things don t happen in a straight-line sequence as things impact each other in multiple, partly unpredictable ways, with all kinds of feedback loops that aren t modeled in a top-down diagramming format an important question is : How adequate is the linear Theory of Change model as a description of what s going to happen?
