If you’re counting, that’s six layers of abstraction between your browser and System.out.println("Hello World"). Your CPU is emulating x86_64 instructions through QEMU’s Tiny Code Generator, which itself has been compiled to WebAssembly, which your browser’s JavaScript engine is JIT-compiling down to native machine code. It’s emulation all the way down.
Challenges and wishes about Rust
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18:22, 4 марта 2026Мир