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C++ guy here. I love being able to make a change and watch the compiler tell me what's broken. In the past year, I was able to justify large scale changes to a big codebase because I could say with confidence that the type system would reveal all. And it did.

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Yeah same, though with Rust. I once did a refactor of my compiler project where I completely rewrote how the AST was represented, then spent the next three or four hours fixing compiler errors.

Worked perfectly first time, because the type system allowed compiler to tell me everything that was broken.

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