Best of 2023

The blog posts Hacker News loved most in 2023. 3,824 posts.

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812

APIs for content sites must be free

Social media businesses should not charge* for APIs. If a company like Reddit or Twitter derives most of its value from content that users write for free then it must provide APIs for anyone to download and manipulate that content. While an interactive API that enables third party applications is desirable, a simple…

837

BB(3, 3) is Hard

I’m excited to share a 3 state, 3 symbol Turing Machine that cannot be proven to halt or not (when starting on a blank tape) without solving a Collatz-like problem. Therefore, solving the \(BB(3, 3)\) problem is at least as hard as solving this Collatz-like problem, a class of problem for which Paul Erdős famously…

840

What a good debugger can do

When people say “debuggers are useless and using logging and unit-tests is much better,” I suspect many of them think that debuggers can only put breakpoints on certain lines, step-step-step through the code, and check variable values. While any reasonable debugger can indeed do all of that, it’s only the tip of the…