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It’d be fun to talk shop with the fast code in slow languages folks. I do that for a living. I remember three ways, but I’m sure there’s more:
- “Just use a better data structure”
- “My language is a DSL for a faster language” (Polars, Numpy, etc)
- “My compiler is surprisingly good if I’m careful” (Julia, JVM, etc)
It’s almost always slow is ways that the language choice doesn’t matter even a little
I’ve never seen a course on functional programming. That would be interesting.
i took two courses on functional programming through coursera. it was based on scala.



