One rebuttal I'd add is that "just in case" reading increases the amount of knowledge you can reference when faced with a new problem. E.g., if you only try to

One rebuttal I'd add is that "just in case" reading increases the amount of knowledge you can reference when faced with a new problem. E.g., if you only try to learn things once you know you need them, you miss out on things you didn't know you could know.