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Keith Devlin

Personal blog · profkeithdevlin.orgmathwriting

Keith Devlin's personal blog at profkeithdevlin.org covers math and writing. Since 2012, 8 different Hacker News readers have linked it 10 times, most often “A Mathematician's Lament (2002) [pdf]”. The last post was in 2023, but the archive is still widely read.

Visit the blog
10mentions?
8HN people?
2012–2026first – last linked?
Links on Hacker News per year · peak 4 in 2025

Too few sampled comments (4) to say how often HN recommends it.?

Why HN links it

HN commenters link this site for Lockhart's Lament, a piece on maths education hosted on it, which one commenter suggests as a better reference than Feynman's account of arithmetic learning.

Summarised by Claude from a sample of 4 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.

Mathematics and other passions

Most-linked posts?

  1. A Mathematician's Lament (2002) [pdf]
    4 people · 4 mentions · first linked 2025-02-07
  2. What is a proof, really?
    2 people · 2 mentions · first linked 2014-11-24

What Hacker News says?

  1. False dichotomy. Mathematics is also a human language. Code and mathematics are more similar in many respects than code and Spanish. but they all share common features of being cultural, mutable, consensus-based, imperfect, and historically embedded. Wittgenstein's philosophy of mathematics might be interesting to you. His description of calculation as a linguistic process should settle the issue if you buy it. Edit…

    Comment linking /2014/11/24/what-is-a-proof-really/

    on “What We Learned From 40 Female YC Founders”
  2. Submitted What is algebra? as a story · 135 points

    HN discussion
  3. Funny, I'm actually working on a game that intends to teach some of this stuff to a non-mathematical audience. Linear algebra is so far-reaching, I find it surprising that other branches of mathematics often seem to get preferential treatment (usually normal algebra and geometry), in spite of the fact that linear algebra is both: a) fairly advanced (i.e. not often taught in school, at least not the deeper stuff) b)…

    Comment linking /2012/02/22/how-to-design-video-games-that-support-good-math-learning-level-3/

    on “An Intuitive Guide to Linear Algebra”
  4. Submitted What is a proof, really? as a story · 62 points

    HN discussion
  5. > You gotta drill the basic arithmetic in order to learn it Do less arithmetic. We have calculators so arithmetic matters less. > no amount of sugarcoating will make kids like it. Sugarcoating is exactly the wrong approach. Its making the subject itself enjoyable. https://profkeithdevlin.org/wp-content/uploads/2023/09/lockh... > This is the lesson unlearned by proponents of "New Math" and "Common Core" in the USA No…

    Comment linking /wp-content/uploads/2023/09/lockhartslament.pdf

    on “Show HN: Scream to Unlock – Blocks social media until you scream “I'm a loser””
  6. Submitted What is algebra? as a story · 5 points

    HN discussion
  7. In this case, Richard Feynman is just writing about his personal experiences of a well-known phenomenon. https://profkeithdevlin.org/wp-content/uploads/2023/09/lockh... ("Lockhart's Lament") would perhaps be a better reference, but nearly anyone who's been through the education system would be able to tell you this.

    Comment linking /wp-content/uploads/2023/09/lockhartslament.pdf

    on “Children's arithmetic skills do not transfer between applied and academic math”
  8. Submitted A Mathematician's Lament (2002) [pdf] as a story · 4 points

    HN discussion
  9. Submitted What Is Algebra? (2011) as a story · 4 points

    HN discussion
  10. Submitted A Mathematician's Lament (2002) [pdf] as a story · 1 points

    HN discussion

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