[colordrops]

I'm sure there was some explanation as to why superscalar CPU architectures were secure and foolproof as well. The point is that no human mind is capable of simulating reality and accounting for every single possibility. There are design flaws and unexpected surprises that make even the most well thought out plans and explanations seem foolish in retrospect. The point is determining the worst case and assuming it will happen.

[Baeocystin]

I think Asimov's The Relativity of Wrong applies here.

( https://chem.tufts.edu/AnswersInScience/RelativityofWrong.ht... , it is an enjoyable essay to read. )

You are correct that flaws and surprises lurk in all human endeavors. But that does not mean that all potential errors are in the same scale or class. We do not know everything, but we know far more than nothing!