It's mimicking humans only in as far as it is still using tools & programming languages developed by humans, for humans.

This is temporary. There is a future where AI builds tools made by AI for AI, evolving at speeds that we may no longer be able to follow.

Even with our current nascent technology, we can already observe this happening. See the recent laments on the AI Bun rewrite that "it's a million lines of code that nobody has ever reviewed." Or Cursor building a new source-control system for LLMs, because git is designed for human collaboration speed, not hundreds of changes per second.

That's just 4 years in. How much of humanity's code will remain hand-written vs LLM-written 2, 5, 10 years from now?