Stack overflow is clearly both an useful, time-saving tool and a "waste of time" (in the sense that it doesn't look directly productive). If you don't like thes

Stack overflow is clearly both an useful, time-saving tool and a "waste of time" (in the sense that it doesn't look directly productive). If you don't like these kind of questions, don't worry, there are plenty of useful questions and answers with a direct work-related application. The answers for your questions are not going to disappear just because there are another questions answered. You know that Stack Overflow has section on things like gaming and role-playing, right? By the way, I'd have loved an example like this a year ago, when I had a physics subject where elastic and inelastic collisions were studied. I'm pretty sure I'm not the only one.