1Keiling’s study addresses the following problem: according to Heidegger, philosophy should become totally historical and should totally focus on things at the same time. How is that possible? Keiling provides an answer by developing what he calls “phenomenological realism” through a close reading of central texts from Heidegger’s late period. Phenomenological realism according to Keiling is a “context-sensitive category, asking to orient philosophy towards things” (289) by way of a “basal, pre-ontological, quasi metaphysically neutral reference” (293) to these very things. Phenomenological realism calls for a “thematisation of the real” (348), of res, i.e. things qua things irrespective of any ontological preconception. We will clarify what this entails in the following three sections. The first section gives a rough overview of the book, the second section highlights its central claims, which are discussed in the third section.
2The book consists of three parts and an introduction. The fairly substantial introduction lays out the problem and clarifies certain hermeneutical issues regarding Heidegger’s late work. Rather than giving up on the later Heidegger’s texts as ‘mystical’ or otherwise unintelligible, Keiling sees them as legitimate philosophical engagements with the history of being and the thingness of things – two strands of Heidegger’s thought he contends are intimately, though not obviously connected. The introduction also provides a synopsis of the themes developed throughout the book and locates them in a wider systematic context.
3The first part, “Phenomenology and Ontology” is in some sense negative as it consecutively disentangles the notions of phenomenology and ontology as well as metaphysics. Here, as elsewhere in the book, Keiling doesn’t proceed chronologically in his reading of Heidegger’s texts but aims to present a coherent argument drawing from sources after (and including) Being and Time. In §1 Keiling establishes Heidegger’s topological analysis of the “end of philosophy” as a meta-theory or “overview” (108) of philosophy, where the end of philosophy does not mean its dissolution but rather the point at which philosophy can look back on its history and uncover the historicity of ontology. Famously Heidegger holds that throughout the course of philosophical thought, being has been understood in different ways, where each specific way of understanding being, namely each ontology, constitutes an “epoch”; Descartes and Kant are prime examples of the epoch of the object or objectification, in which being is equal to being an object.
4§2 accordingly contains a discussion of Heidegger’s notion of “epoch” and how it is related to Husserl’s notion of “epochê”. One result of the discussion is that while it is presupposed that different ontologies all conceptualise the same topic (being) or answer the same question in different ways, this assumption of a unitary common theme is in need of an argument without which “the unity of Being [across ontologies] remains speculative.” (123)
5That issue leads Keiling to discuss different ways of posing the so-called “question of being” in §3. While what Heidegger calls the “guiding question” calls for a concrete, totalising answer of the form “being is …, therefore all beings are …”, which then constitutes an epoch in the history of being, the “basic question” opens up a pre-ontological, i.e. phenomenological discourse (137). Whenever we understand the question of being as a guiding question and accordingly supply an answer to it, we remain intra-epochal. Extra-epochal and therefore pre-ontological access to the appearance of things is possible only through the basic question, which does not require any answer in the sense of a concrete ontology but, reversely, makes it possible to translate different answers to the guiding question into a common language.
6The relation between the basic question and phenomenological accounts of the subject matter of philosophy is the topic of §4. While earlier phenomenologists have simply predefined the “matter of thinking” (Sache des Denkens) by answering the guiding question, thus subscribing to a specific ontology, Heidegger leaves the matter of thinking open by posing the basic question. The basic question disallows philosophy to settle on any specific definition of being and it also prevents philosophy from any claims about being as a totality of beings. If we understand ontology as the business of defining being (or existence) and metaphysics as the effort to think the totality of being, the basic question uncouples philosophy from both ontology as well as metaphysics.
7As Keiling writes in §5, phenomenology knows ontological totality only in the mode of questioning (179). This pre-ontological, pre-metaphysical stance turns out to be the expression or effect of a genuinely phenomenological freedom, namely the ability of bracketing ordinary thought (which Husserl achieves through the epochê) or stepping outside the history of being (an operation Heidegger calls the ‘step back’, Schritt zurück). As Keiling points out in §6, this step back is not “sigetic” (201), i.e. no lapse into mystical silence, but simply the stepping back from any ontological projection of an epochal understanding of being unto entities. The step back is the appropriate reaction to the basic question; it lets the open appear as condition of manifestation and within it the things qua things, yet it nevertheless structures this appearance propositionally (200), making it available to philosophical, though non-ontological, non-metaphysical discourse. This discourse is phenomenology, oriented towards the manifestation of things in an ontologically unprejudiced way; it reflects on and negates the bias induced by any epoch of the history of being to enable descriptions that are not ontologically naïve but allow for the ontological pluralism the history of being has established. In Heidegger’s terminology, the critical impact of phenomenology on ontology allows particulars to appear not as “objects” (Gegenstände) but as “things” (Dinge).
8This progression from the end of philosophy through the reflection on the two ways the question of being might be conceived of, to a step back, can be construed in two different ways: first, it can be understood (macrologically) as the historical development of philosophy in general, Heidegger’s own philosophy in particular. Yet it can also serve as the (micrological) description of what needs to be done to de-ontologise any given discursive context: through the step back as radicalized epochê, the end of philosophy and the turn to phenomenological realism can be initiated at any moment within a philosophical conversation.
9The second, positive part, “Phenomenological Realism”, constitutes a discussion of core issues of phenomenology, starting from a discussion of the canonical phenomenological understanding of the phenomenon in §7. Any appearance (phenomenon) is always of something, it contains presentational and representational elements, most importantly, according to Heidegger’s discussion in the introduction to Being and Time, it presupposes an identical point of reference to understand the very idea that a phenomenon can at first be covered (or not-yet-discovered, unentdeckt), then discovered (entdeckt) by phenomenology or covered over (verdeckt) again. The history of ontology is the history of the way the manifestation of things is covered over by different ontologies. These deliberations lead to a discussion about the nature of phenomenology itself in §8 where Keiling portrays Heidegger’s critique of thinking as representing (Vorstellen) in his reading of Hegel in “The Age of the World Picture” and post-war lectures. As opposed to Husserl, Hegel (according to Heidegger) loses both sight of the transcendence of the things qua things as well as his phenomenological freedom, due to his immanentism. Freedom for Hegel is just participation in or even just contemplation of the absolute process; this however is no the step back (269), but contains ontological determinations of the absolute, namely as of a will. Hegel therefore fails to achieve a proper phenomenological stance.
10§9 then consists of a close reading of the end of Husserl's Ideas I and “Mein Erlebnisstrom und Ich” from the Bernau Manuscripts. Keiling points out that things are paradigmatic objects even for Husserl; they are themselves Leitfäden for phenomenological investigations (314) and their dissolution into their constitutional levels impossible (316, 319). Husserl is himself a phenomenological realist in Keiling’s sense (309, 332). §10 sees Heidegger dealing with Kant as well as the late Heidegger dealing with the early Heidegger dealing with Kant. While the early interpretations lapse into (fundamental-)ontological reductionism, the later interpretations allow for a “pluriparadigmatic phenomenological ontology” (360). For, if “being is not a real predicate”, the reality of things can be discussed without a predefined ontology, including the temporal ontology of early Heidegger. The meaning of predicates is independent of a prior answer to the question of being. This raises the question of how such meaning is to be described. In §11, Keiling turns to language. It is in the variety of spoken and written language(s) that phenomenology finds a first freedom from ontological discourse (386). The experience of things itself is lingual and therefore open for hermeneutics; thus, Heidegger's realism is hermeneutical realism (406). In light of this interpretation, Heidegger’s infamous linguistic speculations, rather than being absurd efforts at a form of mystical etymology, simply afford different ways of describing thing-ness (420).
11The task of the third part, “A World of Things”, is to re-interpret three core-concepts of phenomenology from the perspective of phenomenological realism. Keiling accepts a realistic version of Husserlian horizonality in §12, according to which horizons belong primarily to the thing themselves, rather than our experience of them. Also, the horizonality of things is independent of any given ontology. Keiling identifies Husserl’s horizons with the late Heidegger’s topology and conceives of them as the place where experience takes place. Yet he sees Heidegger himself in danger of trying to reduce things to the metaphysical process of an unfolding of the “Gegnet” (438) or of truth. Similar concerns pertain to the notion of the world, voiced in §13, since Heidegger as well as Husserl stand to fall back into dogmatism or metaphysics when dealing with the world: either it is conceived of along the lines of subjectivist ontology (Husserl), the temporal ontology of Dasein (early Heidegger) or the ontology of the four-fold (late Heidegger). Against this reductionism, Keiling introduces Heidegger’s notion of “worlding” (das Welten) to describe the dynamic interplay of the horizons of things as opposed to the “world” as a unique, definite and static totality of things. In §14, Keiling then treats Heidegger’s topology in the same vain. While Heidegger himself tends to prioritise the spacing of space ontologically, thus degrading the appearance of the things to an “epiphenomenon” (462), Keiling argues that things remain “necessary descriptive factors [Beschreibungsgrößen]” (477) in all contexts of building, dwelling as well as thinking.
12Throughout the dense and detailed study, two main themes emerge. The first revolves around phenomenology as meta-theory of ontology (a), the second concerns things as necessary descriptors (b).
13a) As we have seen, phenomenological realism disentangles philosophy from ontology where ontology is identified as a way of answering the guiding question. Any such answer constitutes an epoch in the history of Being, but according to Keiling they necessarily fall prey to the “ontological circle” (35): starting from the question of Being, we choose one paradigmatic entity or a region of entities to start the investigation. We then – following the ontological difference – focus on the Being of this entity. Under the assumption that Being is Being no matter what entity we look at, we commit an act of “ontological generalisation” (33) through which we arrive at a dogmatic and overgeneralised account of what it means for all things to be. Since this account will break down in the face of entities that are very different from the one whose Being we have overgeneralised, we are forced to go back to raise the question of Being once again. As Keiling notes repeatedly (33, 81, 110, 129, 132), Heidegger himself falls prey to the logic of the ontological circle, firstly when he tries to establish a temporal ontology through his analysis of Dasein, as he simply overgeneralises the temporality of his chosen paradigmatic entity; secondly when he outlines his ontology of the fourfold.
14Phenomenological realism avoids the ontological circle in two ways. It eschews overgeneralisation since it is not interested in providing a philosophical explanation of the totality of entities, and it does not try to give a definite answer to the guiding question. This is why, surprisingly, the absolute is still in play for phenomenological realism, although it does away with traditional ontology (and arguably metaphysics and even epistemology as well): the “un-thinged/un-conditioned (das Unbedingte)” (386) – as Kant puts it – is not something behind or above all entities, as onto-theology has it, but the reality of each thing itself. Taken this way, phenomenological realism remains a theory of the absolute, but not of the totality of entities.
15This stance in turn enables phenomenology to investigate different totalising ontological claims from a non-internalist but also non-externalist viewpoint (288); it avoids the “encroachment of history” (379) on the appearance of things by simply focusing on how things appear in a given situation, without presupposing any specific ontological vocabulary. In this sense, phenomenological realism is still beholden to the idea of phenomenology as a descriptive rather than a speculative endeavour. For Keiling this also constitutes the difference between Speculative Realism as presented by Meillassoux and his own position developed in the reading of Heidegger, for while the speculative realist sees speculative realism as (just another, although) radical alternative to classical ontology, realist phenomenology can treat different ontologies as possible “patterns of descriptions” (64) of the appearance of things and integrate or reject them due to their respective descriptive plausibility. Phenomenological realism thus guards philosophy against empty speculation by tying all ontological theories back to the pre-ontological appearance of things. This is the central negative claim of phenomenological realism.
16b) Things have thereby turned out to be meta-philosophically necessary descriptors: without reference to things as they appear we cannot judge any ontological effort. The main arguments for phenomenological realism proceed along similar (transcendental) lines, insofar as the reference to things and their appearances constitutes the condition of intelligibility for certain philosophical moves: “thingness is the focus of very different contexts” (397). This idea has at least two meanings: an intra-epochal sense and an extra-epochal sense.
17Intra-epochal, the experience of things is the “condition of possibility of objectivity” (cf. 435). In things, space and time instantiate themselves. Also, units of validity (Geltung) can only be described if they are conceived of as based or centred around things of experience (210), which is why Husserl’s descriptions of the levels of the constitution of objects presuppose the appearance of the thing as the focal point of those very levels (319). In his reading of Husserl, Keiling goes as far as to state that only the reference to can stop the regress-problems surrounding the Ego (331). Even temporal (fundamental) ontology has to presuppose things in order to phenomenologically explicate different modes of Dasein (374), since things are always already present as that from which Dasein can understand itself authentically or inauthentically. Things are the starting point of most if not every ontological universalisation (376), as the ontological circle encompasses the move from a given thing, conceived of as an entity, towards its Being along the lines of the ontological difference.
18Extra-epochal, epochs of Being can only be identified as different answers to the same question if the non-ontological phenomenology of the appearance of things is presupposed. For only the reference to things qua things allows to justify and differentiate ontological theories (336) as different descriptions of the very same things. They mediate phenomenological presence and representation as well as their shifts (397). The concept of the world can only be elucidated phenomenologically if things are presupposed (447). A real “why”-question is only possible for the phenomenological realist, since only the realist lets things appear before applying any given ontological framework (456); only the basic question allows to ask for a (final) ground of something without distorting the appearance of the thing in question.
19The study primarily sets out to provide a comprehensive and systematic reinterpretation of the later writings of Heidegger. It achieves this admirably by developing the framework of phenomenological realism as a perspective that allows to read the texts of the later Heidegger as systematic efforts of understanding the appearance of things and its ontological-historical distortions. I will not engage in a comparison with competing readings, although these are discussed throughout the book. However, Keiling himself also locates phenomenological realism in regard to the “discussion about metaphysical and ontological realisms” (16) and therefore raises a claim to offer a systematic contribution to philosophy. As he argues in the introduction, any interpretation of philosophy at some point becomes a philosophical position that is itself susceptible to be checked against what it aims to describe. (5) So instead of engaging with the intricacies of Heidegger exegesis, I would like to conclude this review by pointing out one particularly pressing issue.
20This issue is the identity of things. Supposedly things are “invariants of experience, the reference to which requires no identity-criteria” (52). But while it is true that in everyday life we do not need to know a sufficient and necessary set of attributes to reference a thing, Keiling himself points out that phenomenology needs to show that the things it deals with on a pre- or non-ontological level are the same as the objects of ontology (200). So, while it might sound intuitive to assume that one identical thing allows for very different appearances, how do we actually know that two phenomena are of the same thing? How do we know we can “carry over” a thing’s identity from one “explanatory and descriptive context to the next” if the “meaning of the thing” changes “radically” and different “truths” apply to it in different contexts (388)? Keiling seems to lean towards a foundationalist solution. With Heidegger, he stipulates a “definitive context of explication [maßgeblichen Explikationszusammenhang]” (388), a pure experience of things below all “epistemic paradigms” (388), i.e. an experience independent of ontological contamination. Since Keiling assumes with Heidegger that experience is in some sense tied to language (and language to things, 477), this pure experience cannot be conceived of as non-lingual, though it need not involve a strong notion of subjectivity. And as it is supposed to ground judgements about the descriptive quality of different ontologies (482), it should even be conceptual. Yet to substantiate these meta-philosophical claims of phenomenological realism, this foundational discourse needs to be fleshed out and put into critical use over and beyond what Keiling already presents in part 3 of his study.
21To me this effort would include not only dealing with the issue of the identity of things, securing a foundation and showing how exactly it grounds judgements, but answering a few of the following questions. If phenomenological realism is not thing-fundamentalism, what other categories – apart from “thing”, “horizon”, “world”, “place” – could be in play in such foundational discourse? Is every thing embedded in a “universal horizon” (431) even in the weaker form of a ‘worlding’? Keiling himself notes that Heidegger’s descriptions are always threatened whenever he tries to establish the truth of universal processes without grounding his accounts in concrete phenomena (476), so the supposed universality of the world itself seems suspicious. Also, is the perspective of phenomenological realism available for all ontologies? Phrased differently: are all objects just things in ontological disguise? What about mathematical objects? Should we speak about mathematical things in opposition to mathematical objects? Or fictional things?
22These remarks should not be understood as criticisms of Keiling’s book, since they go way beyond his main effort to re-read the later Heidegger. They rather show that to solve the problem of the identity of things and further develop phenomenological realism, we might need to turn to sources other than Heidegger. Keiling himself hints at the author whose work might be the most promising resource for phenomenological realism: Hans Blumenberg.