"The same pattern that organizes a hurricane also organizes a sunflower. My brain noticed both."
A hurricane, seen from space, is a perfect spiral.
So is a nautilus shell. So is the arrangement of seeds in a sunflower. So is the curl of a fern frond before it opens. So is the way water drains from a bathtub, given the right conditions, at the right speed.
These are not coincidences. They are the same mathematical structure — a self-similar pattern that repeats at different scales — appearing...