Admission to a prestige institution such as the University of Michigan or its law school is what computer types call a "binary" decision. It's yes or no. You're in or you're out. There is no partial or halfway admission. The effect of any factor in that decision is also binary. It either changes the result or it doesn't. It makes all the difference or it makes none at all. Those are the only possibilities. For any individual, the process of turning factors into that yes-or-no decision doesn't matter. Any factor that changes the result has the same impact as if...