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> Is there a reason why all the above software cannot perform as "fast" or "safe" as Rust when written in other programming languages? After all, every program compiles down to machine code/assembly.

Yes, the reason is things like garbage collection and language runtime. Every program does ultimately run some form of machine code, but the amount and type of code generated can vary very widely, not even considering things like VM where you have another couple of layer of abstraction that slow things down.

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