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Over time all abstractions become “wrong” as requirements change.

• amelius 3y ago
  This is why refactoring is a thing. Perhaps someone should write a book for managers that explains these two things.
• mumblemumble 3y ago
  You shouldn't be baking business logic into your abstractions like that. Or, perhaps this is a better way of putting it: if there's business logic mixed into it, it's not an abstraction, it's a concretion.