3Blue1Brown mailing list
Grant SandersonStay notified about new videos and occasional updates on related projects
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 63 | Founded | 5 years ago | Last Issue | 18 days ago |
| Active | |||||
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3blue1brown.substack.comLatest Issues
The Collie and the Pug
What do you say to a group of students at a hackathon in 2026? Are you building in order to learn, or learning in order to build?
The last IMO problem AI could not solve
This video was both a monster and a delight to work on.
In writing it, I found myself thinking a lot about the current moment with AI in math. Based on the title, you might think that’s because of where this problem sits in history: a fina...
Peer review for SoME5
The peer review for this year’s Summer Math Exposition is live! You can join in here.
It’s a fun way to stay engaged with and support any new up-and-comers in the math exposition space, and to stumble upon lots of lessons you otherwise mi...
But what is cross-entropy?
The next part in the "compression is intelligence" trilogy is now up. This one is all about cross-entropy, starting with how it naturally arises while studying compression, then going over a few applications to machine learning. Enjoy!
On monthly puzzles
This year, I’ve been collaborating with MoMath and Peter Winkler to put together a series of monthly puzzles. Peter has a great taste for brain-teasers whose solutions offer both surprise and delight, having written a few great books on the...
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