Don't buy this guy's klein bottles, they're a scam - they're only THREE dimensional! Such a rip off. How am I supposed to store a ŷ̶̺̎͌͐̿̽̊́̕ŏ̶̗̈́̓̍̎̃͠g̶̝̺̜̜͋̿̚ͅ-̷̧̛̈́̔́s̷̰̀͌́̈́ơ̷̝̭̫͛́͘ẗ̴̹̱̖̥́h̸̡̡͙̻̀o̸̹̘̾̀͗̇̕t̵̗̠̄̽̈́͑ḧ̵̳̰̩̲͈̜͉̝́́͌͐ in this thing?
The classic Klein bottle is a 2D surface. It doesn't embed in R^3 regardless of whether you give it a little thickness so you can make it out of matter.
Does anyone else see 10 vertical lines of characters that look like the ‘matrix’ font overlaid on the word ‘yog so Thoth’ in the last two lines of qwertious’ post?