My favorite explanation of IUT is buried deep on Mochizuki's website: http://www.kurims.kyoto-u.ac.jp/~motizuki/sokkuri-hausu-link-english.pdf http://www.kurims

My favorite explanation of IUT is buried deep on Mochizuki's website: http://www.kurims.kyoto-u.ac.jp/~motizuki/sokkuri-hausu-link-english.pdf http://www.kurims.kyoto-u.ac.jp/~motizuki/sokkuri-hausu-link... And accompanying animations: 1) https://www.youtube.com/watch?v=4hJTm8pTV5A https://www.youtube.com/watch?v=4hJTm8pTV5A 2) http://www.kurims.kyoto-u.ac.jp/~motizuki/IUT-animation-Thm-A-washi.avi http://www.kurims.kyoto-u.ac.jp/~motizuki/IUT-animation-Thm-...