Essentially, Nathan's Fork produces a fourth option between the a priori and the synthetic. Not just synthetic a priori or rejecting the synthetic, but treating synthetic and analytic as closer together than their opposites. Either one is a progress of another, or they are related, or the synthetic is impossible. But consciousness says the synthetic is necessary, so if we are looking for alternatives, we are looking for alternatives to the synthetic a priori. That is what it says. Even relativism might have truth.
International Society for the Philosophy of Architecture » Ethics and Aesthetics of Architecture and the Environment