But if you really are trying to move a needle and you don't know exactly what you're doing, rewrite. It's going to take several tries to know what the hell you're doing. And then when you have a design more firm you'll stick with it and you'll start patching it more, and you'll get to this mature state where we creak with patches. It's kind of an evolutionary dead-end for code. You know, maybe it's a good sunk cost and you can stand on it for years. Maybe it's this thing that's crying out for replacement. Maybe in the open-source world some better standard library has emerged. And that gets
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