I always come back to this saying:
“Debugging is the art of figuring out which of your assumptions are wrong.”
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replies(2):
“Debugging is the art of figuring out which of your assumptions are wrong.”
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One way is to reason from a false premise, or as I would put it, something we think is true is not true.
The other way is to mix logical levels (“this sentence is false”).
I don’t think I ever encountered a bug from mixing logical levels, but the false premise was a common culprit.
security with cryptography is mostly about logical level problems, where each key or operation forms a layer or box. treating these as discrete states or things is also an abstraction over a seqential folding and mixing process.
debugging a service over a network has the whole stack as logical layers.
most product management is solving technical problems at a higher level of abstraction.
a sequence diagram can be a multi-layered abstraction rotated 90 degrees, etc.