Generating 4d polyhedra from their symmetries: https://syntopia.github.io/Polytopia/polytopes.html

By Mikael Hvidtfeldt Christensen, via a year-old post on newly-defunct Google+: https://web.archive.org/web/20190306075446/https://plus.google.com/+RoiceNelson/posts/13EEovjAjh3

- Good blog
- https://blog.plover.com/

- Crappy blog
- https://shitpost.plover.com/

- Totemic animal spirit
- Octopus

I am an amateur mathematician, but not the angle-trisecting kind.

Joined May 2017