The central idea of this book is great. He said that knowledge is never completely detached from the purpose that drives us to seek it. I agree strongly with his attack on the idea that all legitimate knowledge can be reduced to positivistic science. Especially because I personally believe that science itself is also driven by human interest.
However, I’m not sure if I agree with his idea to organize knowledge into 3 distinct categories. I experienced that real intellectual work often considerably messier. For instance, consider climate science, it is empirical-analytic because it predicts physical system, hermeneutic when researchers interprent human behavior and institutons, and maybe emancipatory when the research exposes structures that creat environmental harm. Modern AI makes the boundary even stranger. AI can be use for empirical-analytic, hermeneutic, and emancipatory purposes. Even if it categories as a single entity built upon a single category: Technical interest.
Another thing is about emancipatory interest. There is something truly significant in the idea that knowledge can reveal hidden assumptions or forms of domination; in this regard, Marx, Freud, and psychoanalysis represent figures and ideas of great importance to Habermas. Yet, a real epistemological danger arises: who has the right to decide that another person’s consciousness is “distorted”?
Suppose I say: “You believe this because social structures have manipulated you.”
and you answer: “No, I believe this because it is the truth. I have considered the evidence.”
Then if I respond: “Your denial proves that you’re deeply affected by the ideology.”
My theory has become dangerously difficult to falsify. Therefore, critical theory can give rise to a kind of epistemic asymmetry: I understand the structures that determine your beliefs, while you merely feel as though you are choosing them freely. This can become intellectually authoritarian if not constrained by rigorous standards of evidence.