Habermas and the Problem of Ideology: Or, Can the Real Rescue the Universal in a Post Metaphysical World?

In Habermas' formula of the principle of discourse, the truth is an anti-essentialist notion, thus agreements can exist without understanding (instrumental actions), but rational understanding cannot exist without a truth validity claim. There is no room for objective truth in a field of communicative action as the truth is only considered within the formal structure …