[cogman10]

> I don't know if there's a real answer. An abstraction can be right for a while and then become wrong when you add a new requirement right? So is it pointless to use abstractions at all? That definitely feels like the wrong takeaway. I guess instead, it's don't immediately abstract out anything that feels abstractable when writing new code and don't feel obliged to use existing abstractions in a codebase until you're sure they fit what you're doing.

The real answer is that, as much as some would like it to be otherwise, there aren't hard and fast rules in programming. Determining when it makes sense to abstract and when it doesn't is ultimately something that will be guided by experience.

That said, DRY is dangerous. It's to easy to blindly follow and has disastrous effects when the wrong abstractions get made. It's far better to duplicate first and DRY when it becomes a pain.