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faith belongs in the church. Even if you don't like to hear it, it doesn't matter what you or I think, feel, hope or believe. What counts are the facts, and these are implemented in the Bitcoin protocol, can be read and reproduced. It's a program, it has a way of working and it will stick to it

This topic has already been dealt with many times on previous pages, including links to the technical explanations. It is completely irrelevant which software you use, whether you activate RBF or not. I would highly recommend that you read and study the technical documentation on this topic.