I'm grading homework and will probably be grading homework for the rest of the night. All reviews, questions, comments, et cetra will continue tomorrow. @Dogematix@Dark Wind Do not worry I have not forgotten you.
In geometry, flexagons are flat models, usually constructed by folding strips of paper, that can be flexed or folded in certain ways to reveal faces besides the two that were originally on the back and front.
Academic who somehow got conned into working for the Government. Been role-playing both on forums and TTRPGs for close to twenty years at this point. I'm like 99% retired from active RPing on the Guild, but I still like to poke my head onto here once in a while to make sure that I didn't leave the lights on.