Math-thinking, I would say, encourages flipping and substituting letters in words (in the novel, one of the boys double-majors in math and myth, for example, and his twin cracks a joke about the father's handwriting that morphs cacography into dadography).

I realized early on in writing the book that it needed to be from a family point of view, and that nobody outside the family would weigh in. And then well into writing it, the question became how to balance the perspectives how to switch between chapters.

The DNA of the novel - which, if I begin to write nonfiction, I will write about this - is that: the title of the novel is the whole novel. The first line of the novel is the whole novel. The point of view is the whole novel. Every subplot is the whole novel. The verb tense is the whole novel.

In fictional families - in sitcoms, in dramas - the members are sharing huge amounts of their interior lives. And that has not been my real-life experience. In fictional families - in sitcoms, in dramas - the members are sharing huge amounts of their interior lives. And that has not been my real-life experience.