Secrets of Sane Programming: 1. Believe your own eyes. 2. Never design something you don't fully understand.
1. An issue when debugging is letting preconceptions blind you. e.g. Seeing what you expected to see, not what an error message tells you.
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It helps to take things literally. And, it helps to systematically interrogate any discrepancy between your understanding and an occurrence.
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2. Problem-solving often surfaces sub-problems. If you like problem-solving this can lead to a state in which you keep tacking on solutions.
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