Useless information
I love reading and learning about obscure things. There are so many fascinating things I want to know more of. And so little time.
In a way, studying those things is a complete waste of time. Where would I ever use such knowledge anyway? I would be much better off learning about some useful topics.
I do that as well already. Sure, could focus on only those useful things. But what's fun about that. There is enough room for both.