Ion beam application, etching, or sputtering, is a technique conceptually similar to sandblasting, but using individual atoms in an ion beam to ablate a target.
Although constructing a rounded square may be conceptually and physically simpler, the squircle has the simpler equation and can be generalised much more easily.
Philosophically and conceptually, it is difficult to conceive of any legal issue that is not a constitutional matter within a system of constitutional supremacy.