"Note how very different are these various explanations for Roe’s role in polarization. Note, too, how very different are their implications for the institution of judicial review. With a better account of the facts, we might conclude that the particular storm of forces that made “Roe” is not likely to converge again. Or, we might identify features of the Court’s decision responsible for inflaming an already ongoing conflict. Even so, our ability to identify which aspects of the Court’s decision aggravated an ongoing conflict would still require some account, beyond that provided by the conventional Court-centered narrative, of the structure of conflict in which the Court ruled."