It is clear that everybody interested in science must be interested in world 3 objects. A physical scientist, to start with, may be interested mainly in world 1 objects--say crystals and X-rays. But very soon he must realize how much depends on our interpretation of the facts, that is, on our theories, and so on world 3 objects. Similarly, a historian of science, or a philosopher interested in science must be largely a student of world 3 objects.
I think a lot of times, artists and albums can become formulaic. You're known for a certain thing, and you continue to do that. You just change the subject matter, but it's the same song. And that's what you do.