AN UNBIASED VIEW OF TAHTA4D

In 3 dimensions, a circle can be extruded to sort a cylinder. In 4 dimensions, there are lots of distinct cylinder-like objects. A sphere might be extruded to obtain a spherical cylinder (a cylinder with spherical "caps", often called a spherinder), and also a cylinder may be extruded to get a cylindrical prism (a cubinder). When looking for produ