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I remember this from the early 2010s "compilation of a dynamic language is a superset of compilation of static languages ergo we should be able to achieve both

I remember this from the early 2010s "compilation of a dynamic language is a superset of compilation of static languages ergo we should be able to achieve both optimizations static languages can do and more because there are opportunities that only become apparent at runtime". When really its all about the constraints you can put on the user that set you up for better optimization.

senkora 1y ago
And profile-guided optimization (PGO) for static languages turned out to be pretty good at revealing those “only apparent at runtime” optimizations.
dehrmann 1y ago
That's like the joke that dynamic languages are static languages, but with only one type: hash table.
- gugagore 1y ago
  That's not a joke. It's a perspective that is seriously held: https://existentialtype.wordpress.com/2011/03/19/dynamic-languages-are-static-languages/ https://existentialtype.wordpress.com/2011/03/19/dynamic-lan... (Not everyone agrees, for sure, but that's different from it being a joke.)