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Software is slow because of bad design, not slow languages
Never understood the idea of, "if it needs to be fast, that part is in a faster language." Why not just use the faster language? Most of the libraries that have Python wrappers also come with c headers. Sometimes you wind up in the reverse situation where your dependency doesn't have a Python wrapper and now you're stuck managing silly boilerplate. Python just feels like an extra thing in the way to wrangle for little gain.
Also, hotspot-only optimization doesn't seem to have held up in reality, right? We can all agree that software is getting slower every day. The infrastructure is slow.
All feels like cope, through and through.