that is fantastic, really! by my teens i wondered so much of geometric stuff that i looked for every possible source of easier ways of depicting forms in 2d; i ended up teaching classes of applied perspective (one thing i still do nowadays). even after decades of my first insights and "epiphanies" i cannot help being mesmerized by things like that!
I'm drawing this kind of stuff since my first day of school, I wonder how much time they consumed. Let's say 10 years of school, 200 days a year, 2 hours a day: 400 hours, means around 170 days of my life. Quite shocking. But some pretty good things came out.
where? like in a prison? i was in 5th class of elementary school and i was obviously very bored. my schoolmates loved it because it's very easy to do (you make a triangle with one of the lines like on the 2nd step on your post and keep drawing triangles) i'm born on 90, so it was... 01 or 02?
Dunno. That you are box of surprises, lil' sis. I was born in 78, so the one who has been in prison is me. They didn't let me draw or read, so it was no fun at all. If I knew juggling back then... Rolled socks could have saved my life. Further on on this subject, I recommend you to Note me. LOL