Post #19 of my commentary on Heidegger’s anaylsis of Plato’s Theaetetus, written in the lead up to my exhibition: The Aviary
The third perspective from which doxa is examined gets closest to solving the phenomenon of false belief by acknowledging doxa’s duality. But the pseudes doxa is then explained in an erroneous manner by ascribing to it a process of substitution, “if one thing is posited instead of the other, at bottom this means that just one thing is posited.” (201) In the end all three perspectives do not suffice as they all lead to the assertion of the impossibility of the distorted view – yet it exists. This means new perspectives are needed, derived from the phenomenon of the distorted view itself.
The claims of all three perspectives are retracted by Socrates. On the face of it a simple move, yet Heidegger claims it means “the entire foundation of previous philosophy becomes unstable.” (204) This is because the principle of the first perspective, “either we have knowledge of something, or we have no knowledge of it,” which underpins the other two perspectives, is founded on the “fundamental truth of western philosophy,” “that what is, is, that the non-existent is not.”
For Heidegger this gives us “an intimation of the power the phenomenon of pseudos (untruth) possesses to disturb and amaze.” He also notes that the overturning of these guiding principles means that rather than conforming the analysis to these principles the analysis must now be conformed to the phenomenon of the pseudes doxa, i.e. what is seen when we have a false view.