The Wondrous Mathematics of Winter

When winter comes I think of Plato’s theory of ideal forms. If I say circle or square, you know what I mean, though in some sense you have never seen a circle—the shape in the plane where all the points are exactly equidistant from the center—because in reality everything is always at least a little off. Plato thought truth ought to work this way, that what we understand as truth is always an approximation to an ideal form.

Winter is the Platonist’s season…