Top all-time · #19006
Kim Morrison
Personal blog · kim-em.github.io/blogmathprogramming
Kim Morrison's personal blog at kim-em.github.io covers math and programming. Since 2026, 4 different Hacker News readers have linked it 4 times, most often “Why Lean is faster than Rust”. It is still writing: the last post was on 2026-10-30, and you can follow it by feed.
Too few sampled comments (2) to say how often HN recommends it.?
Why HN links it
Linked for posts on building more ambitious software and on Lean 4 formal proofs. The comments discuss those topics, such as new GPU programming languages and Lean's proof checker, but do not judge the writing.
Summarised by Claude from a sample of 2 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Notes on Lean, tactics, and making the theorem prover do more work.
Most-linked posts?
- Why Lean is faster than Rust4 people · 4 mentions · first linked 2026-07-27
What Hacker News says?
I find that frontier AI is very good at understanding new syntax/semantics, for whatever reason. But that's moreso "why is it not just a huge waste immediately". I want a new language because current GPU (and really, parallel programming) languages are just not it. Also, I think we'd be better off if it weren't just CUDA dominating the developer experience. Moreover, I feel that we should be embracing advanced type…
Comment linking /blog/2026-7-24-why-lean-is-faster-than-rust/
on “We should be more ambitious with the software we build”Submitted Why Lean is faster than Rust as a story · 4 points
HN discussionYeah, in essence. This is actually a pretty cool part of working in Lean. It's a somewhat normal convention to write something in a human readable way and then write a second optimized implementation with some kindness of correctness theorem connecting them. There was a whole open "competition" for writing a faster Lean kernel/proof checker that didn't sacrifice on soundness called Lean Kernel Arena. Fun reference p…
Comment linking /blog/2026-7-24-why-lean-is-faster-than-rust/
on “OpenAI’s Navier-Stokes release included a Lean 4 formal proof”Submitted Why Lean is faster than Rust as a story · 1 points
HN discussion