An introduction to group theory, and the monster group.
Viewer supported: 3b1b.co/monster-thanks
Minor error corrections below↓↓↓

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Errors:
*Typo on the «hard problem» at 14:11, it should be a/(b c) b/(a c) c/(a b) = 4
*Typo-turned-speako: The classification of quasithin groups is 1221 pages long, not 12,000. The full collection of papers proving the CFSG theorem do make up tens of thousands of pages, but no one paper was quite _that_ crazy.

Thanks to Richard Borcherds for helpful comments while putting this video together. He has a wonderful hidden gem of a channel: youtu.be/a9k_QmZbwX8

You may also enjoy this brief article giving an overview of this monster:
www.ams.org/notices/200209/what-is.pdf

If you want to learn more about group theory, check out the expository papers here:
kconrad.math.uconn.edu/blurbs/

Videos with John Conway talking about the Monster:
youtu.be/jsSeoGpiWsw
youtu.be/lbN8EMcOH5o

More on Noethers Theorem:
youtu.be/CxlHLqJ9I0A
youtu.be/04ERSb06dOg

The symmetry ambigram was designed by Punya Mishra:
punyamishra.com/2013/05/31/symmetry-new-ambigram/

The Monster image comes from the Noun Project, via Nicky Knicky

— These animations are largely made using manim, a scrappy open-source python library: github.com/3b1b/manim

If you want to check it out, I feel compelled to warn you that its not the most well-documented tool, and it has many other quirks you might expect in a library someone wrote with only their own use in mind.

Music by Vincent Rubinetti.

Download the music on Bandcamp:

vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown

Stream the music on Spotify:

open.spotify.com/album/1dVyjwS8FBqXhRunaG5W5u

If you want to contribute translated subtitles or to help review those that have already been made by others and need approval, you can click the gear icon in the video and go to subtitles/cc, then «add subtitles/cc». I really appreciate those who do this, as it helps make the lessons accessible to more people.

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