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This is a normal post you only think its a cube
Start with a cube and glue each face to the opposite face with a one-quarter turn rotation. Does this gluing produce a manifold? Can the cube be put in a 3-sphere or hyperbolic 3-space so that the gluings produce a geometric 3-manifold? This is called the quaternionic manifold because its symmetries can be expressed in the quaternions (a four dimensional version of the complex numbers with three imaginary axes and one real axis).
(, Wed 7 Aug 2019, 0:09, , Reply)
This is a normal post
Until you can tear and burn the marshmallow to escape the EVIL ONE, it will be impossible for your educated brilliant brain to know that 4 different corner harmonic 24 hour Days rotate simultaneously within a single 4 quadrant rotation of a squared equator and cubed Earth.
(, Wed 7 Aug 2019, 9:30, , Reply)