Point groups in three dimensions the finite subgroups of SO(3), are: the cyclic groups "C" (the rotation group of a canonical pyramid), the dihedral groups "D" (the rotation group of a uniform prism, or canonical bipyramid), and the rotation groups "T", "O" and "I" of a regular tetrahedron, octahedron/cube and icosahedron/dodecahedron. In particular, the dihedral groups "D", "D" etc. are the rotation groups of plane regular polygons embedded in three-dimensional space, and such a figure may be considered as a degenerate regular prism. Therefore, it is also called a "dihedron" (Greek: solid with two faces), which explains the name "dihedral group". The rotation group of
The Hero with a Thousand Faces says that he started "The Hero with a Thousand Faces" but refused to finish it: "I think I got about half way through "The Hero with a Thousand Faces" and found myself thinking if this is true—I don't want to know. I really would rather not know this stuff. I’d rather do it because it's true and because I accidentally wind up creating something that falls into this pattern than be told what the pattern is."Many scholars and reviewers have noted how closely J. K. Rowling's popular "Harry Potter" books hewed to the monomyth schema. Dan Harmon, the creator of