Why the World’s Best Mathematicians Are Hoarding Chalk

Great Big Story · 30.4M views · 2019 · 3:33

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Recreational & visual mathDocumentaries & storytellingdocumentary

Why Hacker News recommends it

Cited as an amusing side story whenever HN discusses blackboards, chalk, and how mathematicians work.

What it is

A short Great Big Story piece about Hagoromo, a Japanese chalk brand so prized that mathematicians stockpiled it, with some reportedly dealing it on the side. It tells the quirky tale of a writing tool whose supply became scarce.

Recommended by 1 HN commenters across 1 different months, 2019 to 2023.

What Hacker News said

Recommends Reedx · 2019-06 · on “The Chalk Market: Where Mathematicians Go to Get the Good Stuf”

Recently saw a good video about this: [this video] Pretty amusing they were stockpiling it and some were chalk dealers on the side.

Cites leovander · 2019-05 · on “Advanced Data Structures (2017)”

Ha, I remember seeing that post recently. Looks like it goes back to a 2015 gizmodo article, and was in a recent youtube clip. [LINK] [LINK] [this video]

Cites JulianWasTaken · 2022-07 · on “Lessons I wish I had been taught (1996)”

Sounds like crummy chalk -- a good blackboard with some chalk is heaven for me. Whiteboards are so sterile. [this video]

Cites Syzygies · 2022-08 · on “Thinking with pen and paper”

I can remember rolling my eyes at a writer using a mechanical typewriter decades after word processors had taken over. Did they thaw out of a glacier? At the same time I love physical media. As a math professor I defend a widespread preference for blackboards over soul-sucking whiteboards, imagining that musicians will still play grand pianos in a century, and they'll still snicker over Ryan Gosling playing a toy piano under the spotlight in that classic movie "La La Land". I've hoarded Hagoromo chalk; I'm the one with the chalk attaché case in [1]. I've always carried multiple grades of drawing paper, and I've worked through many hundreds of artist grade felt tip pens, scanning all my math