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titzer 6 hours ago

> you also saw the V8 folks give up and make Dart

V8 still got substantially faster after the first team left to do Dart. A lot of runtime optimizations (think object model optimizations), several new compilers, and a lot of GC work.

It's a huge investment to make a dynamic language go as fast as JS these days.

eru 6 hours ago | parent [-]

> It's a huge investment to make a dynamic language go as fast as JS these days.

Yes, and on the other hand, other language implementations like CPython can learn from everything people figured out for JS.