4D geometry

4D geometry is the study of 4D objects, which is harder than 3D because we live in a 3D world. Because of that reason, most of it is Analytic 4D geometry.

There are quite some interesting things about 4D, like:

• Being the last dimension to have more than three "platonic solids"
• Being able to completely flip any 3D object
• Knots won't exist in this dimension
• The highest dimension that embeds one of the six simple surfaces formed by gluing opposite edges of a square.
• The lowest dimension that contains a flat torus: the Clifford torus
• There won't be any stable orbits in this dimension

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