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You say 'generally correct', but then to make it correct you have to make a bunch of specific constraints. That's not general. I'm comparing the FFI using library in python to the json library in python, and json is faster for me. I showed how in the post. You are welcome to find my mistake.

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I was the grandparent reply and I meant to only carve out "you cannot write anything in JavaScript faster than anything written in tuned C, and json.parse is the latter".

Which link were you comparing FFI in python to json in python? The link I see seems to be about pure JavaScript language Protobuf impls vs json.parse?

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