The Ulam Spiral does not show a pattern. There's nothing predictive about it. It's just a structure that shows how some of the primes group. They're also anyth

The Ulam Spiral does not show a pattern. There's nothing predictive about it. It's just a structure that shows how some of the primes group. They're also anything but random as the author suggests. We've known that much since the 1st century. They're cool to look at, but there's nothing that earth shattering here.