I think it's a sphere packing thing. [0] Equally sized circles touching on edges "like" to pack into a six-up orientation, not unlike a revolver pistol. My hun

I think it's a sphere packing thing. [0] Equally sized circles touching on edges "like" to pack into a six-up orientation, not unlike a revolver pistol. My hunch is that it's an artifact of pi, somehow. Six being easily factored to three, which has close proximity to pi. [0] https://en.m.wikipedia.org/wiki/Sphere_packing https://en.m.wikipedia.org/wiki/Sphere_packing