- is that the one with dialogue commentary, which got completely deranged as it went on? - There are two versions. The original and the „original“ by Hugbees. 
- I don’t think that really narrows it down, but this is certainly one of the math animations of all time! 
- Yep. That one. 
 
- “pass through itself” does seem like cheating to me. - If you watch the whole video, it’s really cool. - That’s true. I actually watched both versions 
 
 
- Mathematics are so beautiful, intuitive, logical, you look at geometry and something feels right as if the Universe itself is an harmonious flow of beauty… - …and then they invented infinities and topology and stacking squares and whatever cursed abomination allows you to recreate a second sphere by taking pieces of one sphere and rotating it and cakes you can fill with finite filling but not frost and this gif - whatever cursed abomination allows you to recreate a second sphere by taking pieces of one sphere and rotating it - A friend of mine told me a story about a mathematics professor saying something to the effect of “if you haven’t heard of the Axiom of Choice, you’re gonna want a beer first.” 
 
- This animation and explanation is really good!! The studio, which is guess was new at the time, was called Pixar. According to the credits, one of the animators there shares a last name with one of the mathematicians who developed this method (Thurston). 
- Not a physical material but a “surface”. 






