"As a PhD student you get to choose some interesting problem and work on that, right? That's what I naively imagined before I started at the institute. Some day at lunch I told my supervisor about this idea I had. We could take his fluid simulation method from computer graphics and apply it to a problem related to molten polymers. There was this experiment by a group of applied physicists that would fit nicely. He asked me how many people would be interested in the problem. Maybe a handful, I said. And then I realized that there was no way I could work on that problem. Success in academia is measured in the number of citations your paper receives. What point is there in writing a paper that is only interesting to such a small audience? To be successful you need to target a large audience, and not just pursue whatever obscure problem takes your fancy."
As a society, don't we want our young academics to be able to pursue their intellectual passions, no matter how obscure? A lot of original research is produced in areas that others have overlooked or considered unimportant. Do we really want a "citation market" to determine whether researchers can pursue their passions?