The Eye was always above the equator; currently it hovered over a spot about halfway between Africa and South America, whose coasts echoed each other’s shape in a way that made their tectonic history obvious even to nonscientists. The low-lying terrain along both coastlines had huge bites taken out of it, frequently with rocky islands jutting out in the centers of the bites: central peaks of big impact craters. Archipelagoes reached out into the Atlantic but trailed off well short of joining the two continents.