I mean JavaScript is definitely gross to optimize, if you'd design a language for easy optimization and jitting it would look different. Python is just way wors

I mean JavaScript is definitely gross to optimize, if you'd design a language for easy optimization and jitting it would look different. Python is just way worse, especially because of the large and rich CPython C API, which used invasive structures almost everywhere (it has been slowly moving away from that). The CPython people, GvR in particular, always considered it very important for the codebase to remain simple as well, and it is. CPython is a really simple compiler and straightforward bytecode interpreter.