Regan”—Charlotte, he reminded himself too late, but dismissed it as a foregone error—“isn’t just difficult, she’s convoluted. She’s contradictory—honest even when she lies,” he offered as an example, “and rarely the same version twice. She’s confounding, really intricate. Infinite.” That was the word, he thought, clinging to it once he found it. “She’d have to be measured infinitely in order to be calculated, which no one could ever do.”