Message #3252

Subject: Re: Visualizing Space from Ana/ Kata.
Date: Sun, 29 Nov 2015 10:31:30 -0800

You can get an impression of what 4D person will see if you run 120-cell program: dodecahedron in the center is the closest object to the observer, it has almost undistorted form, and far objects are shrunk in the radial direction. Technically they see a central projection of 3D space on half-hypersphere (3D retina of 4D person) that is topologically equivalent to 3D ball.