I am wondering if there has been a slowdown or stagnation in theory in the human sciences. Political philosophy appears to be still debating Rawls and liberal egalitarianism after four decades. In literary theory, there were the “theory wars,” caused by the rise of various sorts of radical-critical theory. But the wars have subsided. In short, it looks like the Big Ideas of theoretical innovation have recently slowed down.
If there is relative theoretical stagnation, then what explains it? The main story of the past few decades in the human sciences has been the steady ascent of various left/critical approaches. But now they have become the Establishment, there is little new.