Very excited that this video was one of five winners of the "helpful for teachers" supplementary prizes of #SoME4. I love it when teachers tell me that they used one of my videos in their classroom!

3blue1brown.substack.com/p/some4-prizes

Teddy Einstein, a West Philly mathematician, was about to hit his stride. Then he was killed while riding his bike. Teddy Einstein finished major research and would start a new job before he was killed earlier this month by a driver in Upper Darby. His family and friends remember the "brilliant" mathematician.

Teddy was a friend in my graduate program.

US policies and infrastructure consistently prioritize cars over cyclists and pedestrians. It's enraging. And very sad.

tinyurl.com/3um2c44v

The fairness puzzle that sparked probability YouTube video by Chalk Talk

Full video at www.youtube.com/watch?v=_YRf...

Outtake from latest video

The Difficulties of Finding "Hay in a Haystack" | Everywhere but Nowhere YouTube video by Chalk Talk

You might have heard that something is as difficult as finding a needle in a haystack. But mathematicians struggle to find hay in a haystack.

New video:
youtu.be/4weMmFZSBtI

Ranking Paradoxes, From Least to Most Paradoxical YouTube video by Chalk Talk

This is a great and concise introduction to popular paradoxes by @kelseyahe.bsky.social. I didn’t know about several of these.

youtu.be/1vJsWKg2o1w?...