philosophy doesn't exist any longer. a concept like noumena can't find a solid foothold in the brain's computational logic. nothing exists in isolation (everything that exists, exists in a relationship) unless we can be assured of the boundaries, and not the arbitrary boundaries of a map, the boundaries of real space. this is why philosophy is a continuous argument over definitions. they're malleable. they're not immutable. you can send me all the definitions in a self-consuming realm like cultural theory, science is always a layer above them.
i may not understand zizek on his terms, i understand him in my terms, cosmological scientific holism, which is what everything else is a subset of. language, space, biology even geology. this is why the needless employment of a metaphor for parallax fails. it only relates to the human and their material, it doesn't isomorphically relate to the rest of the universe. it's as cheap as finding a puzzle piece from another set and believing it fits merely because it has the exact shape, yet the images will never match.
the facts are: classical logic does not relate to cosmology and cannot be a description of how we reason. only intuitionist logic or topos theory can be applied to our being. it describes a logic that never has a complete view. and it is a logic that holds up with other beings that have similar or completely different views (that may not answer the same questions the same way, or can agree that the answer cannot be answered as yet).
What we have here in Parallax View is circus Junk. Culture isn't a theoretical realm, it's real, it has operant archetypes, stability. Pressing his theoretical envelope into cogsci might be quirky or prescient for Zizek, but not when the meanings (parallax for one) are pressed into the service of theory instead of explored as valences or qualities, ie: proof and contrasts. Like Foucault, Slavoj is really a verbose circus ringleader who doesn't control his players, they merely show up as sound-bite references and he waxes poetics while they perform under his tent. Give us a thesis instead of theory, maybe then the proofs will line-up and offer some structure. Don't use a biological necessity as a metaphor for political theory under the pretense of psychoanalysis. That's just wordplay. More and more definitions of words that slur their definitions through change (time). This is the problem in philosophy-theory, it desperately wants to be a science (was Kant closest? Spinoza? Popper?) and by default, those late 20th century bloomers like Barthes, Foucault, and Zizek all employ semiosis or Freud/Lacan to instigate what should become a science but can't. Why? The tools (language) don't match the organ (mind-body-neural net). There's a vast divide between meaning and myth, even between verb and noun. These are all kings' languages (the vast IE: indo-european) the theorists and scientists are forced to use (consider the idiocy of labeling species with latin names and calling it 'scientific'). The interzone are linguists like Jackendoff and Chomsky who unwittingly try and bridge the verbs with the brain, but they're so busy proving a neural set of rules, the theory falls to the side, where it will belong forever discarded. Study the brain, know your IE is a flawed lingual tree hopelessly devolving. Zizek can print all the ideas of parallax he wants (my favorite is Kafka's inanimal contrast to our logic of inhuman), but he can't scrape it to match the brain's vast insight using the meaning of optical parallax. The paradox is Zizek gets the airplay (500+ ratings in Goodreads) while contemporary cogsci masters like Zenon Pylshyn, who are doing the work Ziz can only dream about, gets three. I come to bury Caeser, before he is deified.
Here's a quote from Parallax: "The standard formula of the ultimate goal of the debate between the humanities and cognitivism is that of 'bridging the gap' --namely, the gap between nature, between 'blind' biological (chemical, neuronal. . .) processes and the experience of awareness and sense--what, however, if this is the wrong task? What if the actual problem is not to bridge the gap but, rather, to formulate it as as such, to conceive it properly?"
That sentence, does it have a reference? There is no "standard formula of the ultimate goal of the debate between the humanities and cognitivism" That may be Ned Block's or Ryle's etc, but there is no standard Venn he's identifying. It's not an invention from left-field, but there is no extreme or absolute he's talking about. 'Blind' - biology is not blind, consciousness arrives through biology. I'll give it to you straight, there is no gap. He's offering a gap that only absolutists can still subscribe to, why? To create drama (his best ability). All sciences are subsets within physics. Meaning and belief are the highest computational values in cog sci, yet the concept of meaning is flawed, like our awareness of consciousness. Yet experience is inextricable from belief, but it doesn't require meaning, ever. There's the gap, not between what he's setting up for a barfight, but between discrepancies in things that we've indexed.
Humanity is merely a facet of things here. All we really know is the quantum seems to demand records out of matter. Both the fossils of animals and photographs taken by humans are records. Deciding that photographs are 'more interesting' than fossils as records, well, that obviously should be a massive dilemma, one that frightens people into dissolving deities, yet it's not questioned by Zizek, and that's the core lie of the field, that's the fakery. The whole program of Marxism supposes a human-centered path, and very clearly that may be irrelevant in the Universe's construction.
That's the only 'true' question left. Not the bullshitter's deciphering of gaps between imaginary words like noumena and what we try and call reality. His result is solipsism. It's navel-gazing.
From my point of view, Zizek's probing in the light (2000s) of all the revelations emerging from physics, neuroscience, cog-sci, linguistics, is to write this Parallax book, to pick the least essential things from a fraction of these fields and to write a treatise on selves, mostly his self. Using ideas that brain structuralism belied in the 80s somewhat successfully, and have now been destroyed. Well, that's like the town-crier that hasn't read the news for years yet still has something he wants to shout about.
It's poetry. It's not relevant beyond the era it was born in.