If there’s lives on the line or a lot of money on the line … uber redundancy is a good idea
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Ossification?
Frozen code?
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The most important protocol in human history, base 10 math, English
Prioritize integrity
Prioritize stability & security
Numbers 1-9 … ossification?
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You don’t need to change the protocol
Software
Be consider what you may break
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Fourth order thinking
Avoid catastrophic failures