Gare, a Möbius strip is possible in 3D, perhaps you meant 2D?
Our 4D is 3D+time: space-time. Mathematical 4D is different, and in that, a Klein bottle comfortably sits.
I'v always wanted a Koch Snowflake, but ever time i print one and try to cut it out christmas has passed.
The perimeter is infinite, the area is finite.
Acorn
Bookmarks