Brian Greene

One of the strangest features of string theory is that it requires more than the three spatial dimensions that we see directly in the world around us. That sounds like science fiction, but it is an indisputable outcome of the mathematics of string theory.

When a place comes across vividly in a novel, it's often compared to a character. I can remember writing teachers who encouraged me to treat setting as if it were a character, to give it three dimensions, to make it come alive, jump off the page.