From time to time, discussions arise about the merits of posting identical answers to (allegedly) related-but-not-duplicate questions. In almost all of these, someone brings up the same argument that there can be rather different questions that still have the same answer. Unfortunately, all the examples I've seen are trivial ("42", "blue", etc), and entirely lack the explanations that are at the core of SE.
So I have a challenge: present a question-question-answer tuple — whether on-topic on any current SE site or not, although they should otherwise generally meet standards — that satisfies these three requirements:
Questions are fundamentally different beyond reasonable doubt.
In other words, they are not duplicates. This must of course be thoroughly demonstrated, since this is challenging the basic assumption directly.
The answer includes an explanation sufficient to teach anyone with generally similar problems how to address their problem as well.
Pretty simple; an SE answer without explanation is fairly poor at best and on some sites will be deleted out of hand. There's no point in arguing for the existence of questions that can be kept open only by the promise of attracting terrible answers.
The answer needs only cosmetic adjustments, if any, to be suitable for both questions.
That is, surface details like variable names, specific gadgets, or certain minor points of interpersonal conflict may need to be adjusted, but without changing the meaning of the answer any more than any good editor would.
I used to think it was possible, at least in principle, to have a few rare questions with identical answers that should stay separate. Now I'm not so sure, but I can still be convinced. Here's your chance!