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So you get other bugs when rewriting in another language without existing tests, got it. This is why I hate all the announcements of "it is rewritten in rust so it is obviously better than the original since it passes all the tests". Edit: and it's an LLM rewrite. Add that to the pile of over hyped messaging.

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Unfortunately, too many people are getting captured by marketing and are divorcing themselves from reality. A rewrite can be an improvement, even if in the same or any other language.

But, there are also levels, in terms of quality and human code review, when dealing with rewrites. New bugs can be introduced or there can be style issues, that can take time to fully reveal themselves, and particularly if the person or people involved are not familiar with the other language.

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