A thousand times this! Principles, heuristics, "best practices," and just generally good ideas are not absolute truth. SOLID is like hand washing. Please do it

A thousand times this! Principles, heuristics, "best practices," and just generally good ideas are not absolute truth. SOLID is like hand washing. Please do it! Unless you have a good reason not to. The root of the "disprove a heuristic by a single counterexample" problem is a misunderstanding of logic. A heuristic is not a statement that universally all hands must always be washed. It is a milder claim that generally handwashing has proved useful via inductive means, so you should probably wash your hands if you want to minimize your risk. Any expert in a given field should know times when not washing hands has been justified. But by the same token, those people know that they should still recommend hand washing to the general public because they won't know when it's not justified. Wash your hands, please.