Some knowledge, while factually correct, is essentially useless.
For example, do I really need to know all that wide range of small political facts? Some information is not needed.
Of course it’s good to know everything, but what about the capacity of the receiver? Our memory and emotional battery ain’t infinitely elastic. That’s why I don’t spend time reading newspapers and social networks, only the best quality essentials and in very little amount.
Also, imagination, emptiness… so important for the mind, let it be.