> by writing N parsers (“readers”) and M renderers (“writers”), one could support N × M conversions.

Beautiful writeup for a wonderful project. In an age of vibe-coding hype it's also so nice to see how things can be extended and snowball in usefulness when things are built correctly, by hand, from basic principles.

> Perhaps, then, in the future, people will no longer have a need for tools like pandoc.

I think we will need wonderful things like pandoc more and more. As mentioned there is a huge ecological and practical difference. Even if LLMs could get infintisamally close to deterministic-level reliability, it's still so many more orders of magnitude better in efficiency, especially with big batch jobs etc.

Well the difficult part is finding a good intermediate representation, which they did