Notes on: Barad, K. (2003) Post-humanist Performativity: Toward an Understanding of How Matter Comes to Matter. Signs: Journal of Women in Culture and Society, 28 (3), 801 – 31.

Dave Harris

[A full account of the 'elaborations' of Böhr into the stuff on phenomena, intra-action and th like]

Recent 'turns' have given too much power to language as opposed to materiality. Do we have a direct access to cultural representations, however, as opposed to 'the things represented?' (801). [Apparently based on a critique of Descartes' method by Rouse -- below] Matter is seen as passive immutable, or having a potential which depends on language and culture. There is always 'a linguistic domain as its conditions of possibility'

Nietzsche was among the first to argue that language is being granted too much power, that linguistic structures do not determine our understanding of the world, especially things like subject and predicate structures [a strange early version of linguistic determinism]. There is no 'prior ontological reality of substance and attribute' (802). This is extended by representationalism — words can mirror pre-existing phenomena — and it supporta social constructivist as well as traditional realist beliefs, although it is now a matter for some dissatisfaction both within feminist and STS circles.

We need a performative understanding of discursive practices to challenge this belief. We're not talking about turning everything into words, but rather using performativity to contest the excessive power of language. Instead of questioning correspondence between descriptions of reality and reality, we focus on practices or actions, and this will raise fundamental questions of 'ontology materiality and agency' to replace the 'geometrical optics of reflection' where images and epistemology get bounced back and forth 'but nothing more is seen' [I still don't see who is supposed to represent this trend]. We need instead physical optics and questions of diffraction.

We should diffractively read feminist and queer theory and science studies approaches to rethink both the social and the scientific. [ie develop a general philosophy to account for both NOT just find agreements etc] If we do so, we will see that there is no absolute exteriority between these two at all, just as diffraction patterns reveal the indefinite nature of the boundaries of shadows. The social and the scientific is a relationship of '"exteriority within."', a doing, the 'enactment of boundaries'. Liberal social theories and conventional notions of scientific knowledge assume the world is composed of individuals, independent of the laws of nature which will be represented. This is 'a metaphysical presupposition' (804) that underpins representationalism. It assumes that there is some ontological distinction between representations and that which they represent, that that which is represented is independent of representing, that there are two different and distinct kinds of entities. Sometimes there is the third entity the knower who does the representing and here representations mediate between independently existing knower and known. The question then becomes one of accuracy of representations, whether languages represent their referent.

There has been challenge from feminists poststructuralists, postcolonial critics and queer theorists, such as Foucault and Butler. Butler uses Foucault to point out that systems produce subjects, and we have to be careful not to present women as an effect of feminism itself, discursively constituted, by the same system that it claims to break with. Political intervention [in feminism] in particular needed to break with representationalism.

In science studies, representationalism seemed inadequate once we looked at actual productions of scientific knowledge and the dynamics of the practice of science. This approach is associated with science studies rather than the earlier separate multidisciplinary studies like history of science and so on. STS does look at how scientific representations are produced, but there is also an effort to move beyond. Hacking, for example, or Rouse interrogated representationalism and its limits on theorising. Rouse in particular wanted to go beyond the old debate between the realism and constructivism and pointed out that these two positions have more in common, representationalist assumptions that concepts or data mediate access to the material world: the differences whether such knowledge represents things as they really are, or objects that are produced by social activities.

Representationalism is deeply entrenched and now appears as common sense, natural. But it has a history as Hocking argues, beginning with the Greeks on atoms and the void — Democritus suggested a level of reality that was not immediately apparent, raising a problem about what representations actually represented — solid objects or clusters of atoms. Rouse blames Descartes for dividing internal and external along the line of the knowing subject — this produces a 'faith in word over world' (806). Rouse also questions the accessibility of reality to language, especially that we can know what we mean or what we have said '"more readily than we can know the objects the sayings are about"' — it is all down to Descartes insisting that we can know the contents of our thoughts better than we know the external world. [weird interpretationof the radical doubt experiment, where we doubt sense data not he external world, but not thought because that would be a contradiction. Then we have to bring the world back in -- not just as empirical data though. ]Representationalism is not a logical necessity but 'simply a Cartesian habit of mind' (807).

Performative understandings emphasize discursive practices rather than linguistic representations. We find these in feminist and queer studies as well as STS, in the work of Butler, or in Haraway, Latour and Rouse. Performative is now ubiquitous, found in a number of other studies. Perhaps all performances are performative? There is a specifically post-humanist notion, however, which 'incorporates important material and discursive, social and scientific, human and nonhuman, and natural and cultural factors' because all the earlier binary categories are destabilised once we see them as produced by practices.

We have to understand this production, not only of subjects but also matter, bodies. Foucault goes some way towards this although he has limits, also found in Butler [note 8 notes that Austin on the speech act, and Derrida have also been important. It is Butler in Gender Trouble that develops the notion of gender performativity as doing, a kind of becoming or activity, '"an incessant and repeated action of some sort"'. It was apparently Sedgwick who went on to argue that this is 'inherently queer'].

Foucault has therefore [!] queered Marx, seeing the body as the locus of productive forces, a site for the articulation of power and local practices. However, he has not given sufficient emphasis to the physical body, sufficient to avoid any suspicion that the biological and historical are related just historically. We need to see other ways in which they are connected and simultaneous, whether or not biology also has a history. None of these questions are possible with social constructivism, and they are inadequately addressed in Foucault — we need an account 'of the body's historicity in which its very materiality plays an active role in the workings of power' (809). Matter is too passive and this opens the danger of representationalism again. He has not adequately theorized the relationship between discursive and nondiscursive practices — it is not enough to say that bodies are discursively constructed, because there are also nondiscursive practices that affect it. We need to grasp the full materiality of power, and not restricted just of the social, to see matter as an active factor. The 'very atoms that make up the biological body come to matter' (810). Cultural and socio-historical forces are inadequate — 'there are "natural," not merely "social," forces that matter'. Sometimes forces labelled as social or cultural or whatever are really material–discursive, but following disciplinary habits can miss these 'crucial intra-actions' among the forces that go beyond disciplinary boundaries.

We need a proper account of the materialization of all bodies including nonhuman ones and how their constitutions are defined by practices. We can thereby relate the nonhuman to the human, even in terms of agency as well as grasping all the productive practices involved. This will be what she calls agential realism — 'an account of techno-scientific and other practices that takes feminist, antiracist, poststructuralist, queer, Marxist, science studies, and scientific insights seriously' (810 – 11) [no sociology]

In this way performativity can become 'a diffraction grating for reading important insights from feminist and queer studies and science studies through one another'. Performativity will also be reworked in a materialist and post-humanist direction.

Deleuze and Foucault are quoted briefly to show that the relation between things and words is problematic, and representationalism says they are 'ontologically disjoint', leaving itself with a problem of linking them. Maybe the world already has resemblances, things 'emblazoned with signs'? (811). More likely, the 'knowing subject is enmeshed in a thick web of representations' which captures us within language and within an imprisoning metaphysics. Representationalism cannot solve the problem of linkage because it cannot step out of language.

We should think in terms of 'thingification', turning relations into things (812), and begin to think about relations without relata — a 'cultural proclivity' [which is assumes of course that we have solved the problem of representationalism precisely by stepping out of language]. Relational ontology rejects distinctions between words and things and acknowledges 'nature the body and materiality in the fullness of their becoming'. We can reject optics, notions of transparency or opacity, absolute 'geometries' of exteriority or interiority and seeing humans as either pure causes or pure effects [who does that — extreme monadism again].

We have to reject 'atomistic metaphysics' begun by Democritus which postulates 'individually determinate entities with inherent properties' [it's hardly a surprise that she has to choose an example from before modern science]. This idea also features in 'liberal social theories and scientific theories'. We understand entanglement as a matter of 'various/differential instantiations'. (813) [Which seems to leave no room for any account of motion, or process or social change].

Böhr's philosophy physics offered a radical challenge to this, rejecting atomistic metaphysics and arguing that there are no inherently determinate boundaries or properties to 'things' [glossing the issue of scale here], that words do not have inherently determinate meanings, and that the Cartesian distinction between subject and object has to be replaced. Language is not transparent nor is measurement, and neither just mediate representing states of affairs. However there is no 'nihilism or the sticky web of relativism' — 'the possibility of objective knowledge' remains. The work is not just based on reflection but on new empirical findings [note 17 says that 'on my reading… Böhr can be understood as proposing a proto-performative account of scientific practices]. He proposed a new epistemological framework, but did not explore the ontological dimensions. Barad has 'mined his writings for his implicit ontological views and have elaborated on them' [not diffracted then?] To develop agential realist ontology.

This advocates 'a causal relationship between specific exclusionary practices embodied as specific material configurations of the world (i.e., discursive practices/(con) figurations rather than "words") and specific material phenomena (i.e. relations rather than "things")'. A causal relationship between these apparatuses is '"agential intra-action"' (814).

For Böhr, theoretical concepts are physical arrangements, which cannot be understood in the abstract but which take on meaning [the example is position] only 'when a rigid apparatus' is used. Measuring the position on an apparatus is not the property of some abstract object but rather 'of the phenomenon — the inseparability of "observed object" and "agencies of observation."'. Momentum, involves material arrangement between movable parts. What is normally called uncertainty is 'a straightforward matter of the material exclusion of "position" and "momentum" arrangements (one requiring fixed parts and the complementary arrangement requiring movable parts)' [this is just conventional exclusion, surely, there is fixity and movement in both?On the other hand, at the quantum level, the one does seem to exclude the other ontologically] [Note 18 tells us that as a result of this 'single crucial insight, together with the empirical finding of an inherent discontinuity in measurement "intra-actions"', Böhr argued that observer and observed, knower and known could not be inherently separable]

In an 'elaboration' (815), phenomena are not just relations of observer and observed but the 'ontological inseparability of agentially intra-acting "components"' — 'ontologically primitive. Intra-action 'represents a profound conceptual shift' — specific ones determine boundaries and properties of the components, making them determinate and meaningful. A specific intra-action 'enacts an agential cut' and it is that that separates subject and object as 'a local resolution'. Relata in phenomena also emerge through specific intra-actions, producing another enactment 'agential separability — the local condition of exteriority – within – phenomena'. It is this form of local separability that produces the possibility of objectivity.  Agential cuts also produce causal structures among components, including the marking [or effects] of agencies on measured objects [or causes], and this replaces the usual notion of causality [note 21 offers a concrete example of light passing through to slit grating, producing waves in one configuration, particle in another. For Böhr this shows the phenomenon of 'light intra-acting with the apparatus', not that wave and particle are inherent characteristics of the object. We have 'different cuts' that relate the measure and object to the measuring instrument in the form of 'local material resolutions of the inherent ontological indeterminacy'. So the results do not conflict but simply 'mark different intra-actions'].

In a 'further elaboration', (816) we are not just talking about laboratory exercises engineered by humans, nor mere laboratory instruments. Apparatuses themselves have to be newly theorized to go beyond scientific practices. We want to explain a number of material–discursive practices, including those that draw distinctions between the social and the scientific [note 22 says this is not just based on an analogy, but rather that 'anthropocentric restrictions to laboratory investigations are not justified'. What about the second bit about the social and the scientific though?].

Apparatuses do not just inscribe or 'mediate the dialectic of resistance and accommodation' [what a weird addition!]. They are not neutral probes nor do they imposed particular outcomes. In her 'further elaboration' of Böhr, they are 'dynamic reconfigurings of the world… Specific agential practices/intra-actions/performances through which specific exclusionary boundaries are enacted'. There is no outside boundary to them, so closure is impossible in iterative reconfiguring — 'apparatuses are open-ended practices'.

Apparatuses are also 'themselves phenomena' [necessarily -- so what marks their boundaries?] they do not meekly serve a particular purpose. The practices that constitute them are constantly being rearranged and reworked as science proceeds — 'getting instrument to work in a particular way for a particular purpose' (817). Apparatuses intra-act with others. And practices themselves turn into subsequent iterations as 'locally stabilise phenomena' get enfolded — 'boundaries do not sit still'. [except when they do, as is common in the macro world]

Back to phenomena as produced by 'agential intra-actions of multiple apparatuses'. Humans are not always involved, because the boundaries between humans and nonhuman is are constituted by this practice 'phenomena are constitutive of reality'. 'The world is intra-activity in its differential mattering', and there is nothing other than phenomena. Local structures are reconfigured and enacted with apparent boundaries and properties and meanings. This is how one part of the world 'makes itself differentially intelligible to another "part" of the world'. It is 'the making of spacetime itself', an ongoing process of mattering. Normal notions of time and space emerge, particular relations of 'exteriority, collectivity, and exclusion are reconfigured' (818) in changing topologies.

The universe 'is agential intra-activity in its becoming', material-discursive practices are the 'primary semantic units', while phenomena are the 'primary ontological units'. This is agency. There are implications for post-humanism.

Discursive practices are not just based on human language. [If we define them that way] The boundary between human and nonhuman itself has to be enacted, taking into account 'questions of ontology'. If humans are phenomena with differential becoming, with shifting boundaries and properties, then discursivity is not uniquely human [but all that depends on terms like agency meaning the same for humans as it does for nature — constructing natural phenomena is just the same as constructing social ones. Apart from anything else, there can be no 'free will' -- see below.]

Meaning and 'semantic contentfulness' is achieved through particular discursive practices. Inspired by Böhr, we can add 'agential realist points': meaning is not just ideational but material because it configures the world; semantic indeterminacy is also only locally resolvable [as in pragmatics], by 'specific intra-actions' (819). Discourse does not just mean language or linguistic systems — that is representationalist thinking. Discourse is not what is said, but  rather 'something which constrains and enables what can be said', and what counts as meaningful. Statements emerge from a field of possibilities not from the consciousness of the subject and this field is' a dynamic and contingent multiplicity'[more or less the same as structural linguistics has always argued, together with a bit of pragmatics in Guattari].

Foucault points to the local sociohistorical material conditions such as speaking, measuring or concentrating, and the production of subjects and objects. For Foucault, the conditions are immanent and historical, not transcendental or phenomenological, not relating to the laws of experience as in Kant, but in 'actual historically situated social conditions'. There are some 'provocative resonances (and some fruitful dissonances)' with Böhr on apparatus. [I didn't notice any fruitful dissonances]. Apparatuses are particular local physical arrangements acting as conditions for knowledge practices, and, through cuts, producing objects of knowledge practices. This helps break conventional dualisms like object/subject. This is an emphasis on 'materiality of meaning making', 'that goes beyond what is usually meant by the frequently heard contemporary refrain that writing and talking are material practices' (820) [as in Richardson-type stuff] . B is more precise than Foucault on how discourses are supported by material practices, without insisting that these practices determine discourse: there is 'more intimate relationship between concepts and materiality'[Note 26 blames Foucault for sticking with a social science demarcation, comparing the discursive with the social, and Barad finds this 'not particularly illuminating' compared to post-humanism -- she 'is not limited to the realm of the social']

However after her elaboration, apparatuses are not static embodying particular concepts, but material practices that enact determinacies, 'exclusionary practices of mattering'. They produce material phenomena in 'discursively differentiated becoming'. They produce local determinants of phenomena, and help to deal with the indeterminacy of ''words" and "things". Materiality and discursivity show 'mutual entailment', if we think of both as 'intra-activity'. We can then translate discursive practices as specific material reconfigurings of the world and so on, 'ongoing agential interactions', fixing local determinacies and all the rest of it, including local causal structures so that effects can be seen as marks of causes in particular articulations. Meaning is similarly 'an ongoing performance of the world in its differential intelligibility' [but why should some parts of the world wish to make themselves intelligible to human beings, through human beings? It sounds like Hegel again]. Particular parts of the world become determinate and intelligible. This is never ending [but bits of it have been very stable for eons].

Discursive practices are not linguistic with no relation to material practices, not 'anthropomorphic placeholders' to reveal the agency of individual subjects or cultures. 'Indeed, they are not human – based practices'. Post-humanism operates without a previously-fixed boundary between human and nonhuman, but insists on 'a genealogical analysis of the discursive emergence of the "human"' [some sort of biology of life?]. Matter is not isolated bits of nature, nor is it uncontested ground. It is not immutable or passive and does not require an external force to complete it. It is 'always already an ongoing historicity' [note 26 (821 – 2)refers to Butler on matter, denying any passive blank site awaiting inscription, although this does still see matter as' a passive product of discursive practices rather than as an active agent', and confines itself to human bodies]. Matter is 'substance in its intra-active becoming…  a congealing of agency… ongoing intra-activity' (822) and this is how phenomena 'come to matter'.

Matter is not an effect of human bodies or of language. Material constraints and exclusions are important factors in materialization. 'The dynamics of intra-activity entails [tautologically] matter as an active "agent" in its ongoing materialization'. Boundary making practices, 'that is, discursive practices' are implicated — 'materiality is discursive… Inseparable from the apparatuses of bodily production', including the reconfiguring of boundaries. Discursive practices are 'always already material… ongoing material (re)configurings of the world' [lots of repetitive circularity here]. There is no external relation between discursive practices and material phenomena they are 'mutually implicated in the dynamics of intra-activity', not reducible. They mutually entail each other — 'neither is articulated/articulable in the absence of the other'. None are ontologically or epistemologically prior, or privileged. So apparatuses are material–discursive, and material discursive practices are 'specific iterative enactments — agential intra-actions' through which matter is engaged and articulated, complete with boundaries. This in turn reconfigures the field of possibilities. Interactions 'are causally constraining' (823) enactments involving the sedimentation of matter and its enfolding.

Material conditions don't just support particular discourses, but come to matter on their own account. They are conjoined with discursive ones in the form of 'constraints conditions and practices', 'intertwined' and it is pointless to try and separate them and determine their individual effect. We can also avoid 'traditional empiricist assumptions' about the transparency or immediacy of the world [Deleuze's 'objective illusion'], and the 'stalemate' that follows if we just admit that our access to the world is mediated, with 'precious little guidance about how to proceed'. Mediation should be replaced by a better accounting of the empirical world, something that takes it seriously again, something that sees that the 'objective referent is phenomena'.

All bodies come to matter through performativity, not only the surface of the body but its very atoms. Bodies do not have inherent boundaries and properties but are material–discursive phenomena. '"Human" bodies are not inherently [weasel? Implying some fixed notion or some 'free floating ideality'] different from "nonhuman" ones'. We are not talking about a vague process where some linguistic practice actually produces something substantive. There is 'a material dynamics of intra-activity' (824) where the material is always material discursive — 'that is what it means to matter'. It is not just that human bodies are materialized in some exclusive way — the practices which constitute them are 'always already implicated in particular materializations' implying particular exclusions 'are always open to contestation'

We need to explore the nature of causality and the possibilities for agency in the sense of 'intervening in the world's becoming' and this will get us onto responsibility and accountability. 'Agential intra-actions are causal enactments', because an agential cut separates out different component parts of the phenomenon, one which can become a cause and the other an effect — so '"measurement" is nothing more or less than a causal intra-action'. We can also, 'as a matter of preference' [only?] Think of it as 'part of the universe making itself intelligible to another part' [note 30 argues that 'intelligibility is not a human based affair. It is a matter of differential articulations and differential responsiveness/engagement' and this is apparently supported by a certain Vicki Kirby. Note 38 says that it is Kirby who offered the 'remarkable "materialist" (my description) reading of Derridean theory' page 829. The key book appears to be Kirby, V (1997) Telling Flesh: The Substance of the Corporeal. New York: Routledge]. The important thing is that causal interactions leave marks on bodies and 'objectivity means being accountable to marks on bodies'.

This is not the same as the usual notion of cause which depends on absolutes of exteriority and interiority and of 'determinism and free will'(825). The notion of absolute exteriority, [a 'geometry'] depends on a 'metaphysical presumption' of an ontological distinction, as in constructivism, where culture is an external force acting on passive nature. However, if nature is pre-discursive, this 'marks the inherent limit of constructivism'. Sometimes there is a softer argument that culture shapes nature but does not actually produce it. If nature does not exist before human culture, it needs to be explained how it arises. A further alternative offers 'the geometry of absolute interiority' where effect is reduced to cause, or nature to culture, or matter to language — 'one form or another of idealism'.

Agential separability presents an alternative. It works with the notion of '"exteriority within"' a changing topology to replace Euclidean geometry [note 32 mentions manifolds which change relations of connection].Tthis is exteriority within phenomena which are already material–discursive, so no priority is given to either. There is a 'ongoing topological dynamics that enfolds the space-time manifold upon itself' rather than absolute exteriority or idealistic collapse. This apparently follows because the apparatuses of bodily production are themselves phenomena and are thus '(also) part of the phenomena they produce' (826). This provides a large space of agency, and not just because we have added nonhuman agency. Intra-actions entail exclusions, and exclusions prevent any possible determinism [note 35 refers us back to the quantum where the exclusivity of position and momentum radically changes the notion of classic causality]. Intra-actions constrain but do not determine — 'the future is radically open at every turn' and this is inherent in intra-activity. Apparatuses can reinforce each other but even here agency 'is not foreclosed' [so this addresses 'free will'? It is radically possible although there are constraints? Pretty conventional and very abstract]

If we look at a post-humanist notion of performativity we must take into account human, nonhuman and even cyborg forms of agency, and all other forms. Agency becomes a matter of changes in the apparatuses of bodily production. This takes place through 'various intra-actions' some of which change the boundaries around what is human. To insist on a fixed category would be to exclude possibilities and this is 'eliding important dimensions of the workings of power' [power has not been mentioned at all so far --it's effects are mostly illusory, based on a misunderstanding of agency?].

Agency is not just a humanist matter, not aligned with human intentionality or subjectivity. We don't just add on other agents. It is a matter of intra-acting, an enactment, not something that somebody has, not an attribute but a matter of intra-activity, '"doing"/"being"' (827). Agency involves enactment of iterative change to particular practices. It is about possibility and accountability [have not heard much about this either so far]. 'Particular possibilities for acting existed every moment, and these changing possibilities entail a responsibility to intervene in the world as becoming, to contest and rework what matters and what is excluded from mattering' [so here taking responsibility means activism, political action to save what matters and to include more mattering].

In conclusion, lots of people struggle with the 'weightiness of the world' not just science studies but feminist queer and cultural studies as well. There is an urge to reclaim matter. For others, it's not just a matter of advocacy 'on behalf of the subaltern' but a broader issue of accounting 'for our own finitude'. Is there a limit to the productiveness of discourse – knowledge? Even here, these questions are commonly addressed not by referring to the unruliness and open-mindedness of matter, but via a reflection in mirrors ending either with 'transcendence or our own image', naive empiricism or the 'same old narcissistic bedtime stories' [can she mean Christianity?]

Post-humanism challenges the notion of materiality as either given or just an effective human agency. Agential realism suggests that materiality is an active factor in materialization, not a passive surface, not the product of cultural performance, not mute and immutable. Feminists have long contested the nature/culture dualism, and the human/nonhuman one is being challenged. Feminists have argued that the dualism limits the understanding of both [science studies seem to supported this]. Yet they are still offering a limited performative account, with 'anthropocentric values in its foundations'.

A proper performative account would rethink the relations between discursive practices and material phenomena. Agential realism sees discursive practices as material reconfigurings of the world producing local determinations and properties. Matter is not fixed but is 'substance in its intra-active becoming' a congealing of agency. (828). Performance doesn't just refer to 'citationality' [a term introduced in the discussion of Butler --referencing meanings?] but to 'iterative intra-activity'.

In science, the knower is not absolutely external to the natural world and there can be no exterior observational point. It is not absolute exteriority that guarantees objectivity. Instead we need to think about 'agential separability — exteriority within phenomena'. We are part of the world, not detached. Böhr argued this by saying that we are part of the nature we seek to understand, although he limits this 'in his ultimately humanist understanding of the "we"' [didn't allow for nonhumans]. Kirby, by contrast, challenges the idea of human identity something enclosed and finished, not just in nature but '"inherently unstable, differentiated, dispersed and yet strangely coherent"' [let's hear more about this coherency!]. We can't just say it is nature because that would involve 'prescriptive essentialism' instead, we need to animate nature and see it as '"performing itself differently"'.

We cannot arbitrarily construct an apparatus, nor simply apply 'causally deterministic power structures' to satisfy particular projects. They are 'themselves specific local parts of the world's ongoing reconfigurings' [well we might have emerged from 'nature', but are there no emergent human effects? Does human language and culture make no difference?]. Laboratory experiments, concepts and other practices are 'part of the material configuration of the world in its intra-active becoming. "Humans" are part of the world body space in its dynamic structuration' [Hegel without God]

Practices of knowing are not entirely human. We use nonhuman elements, but, more important, 'knowing is a matter of part of the world making itself intelligible to another part'. Knowing and being are 'mutually implicated'(829) — 'we know because "we" are of the world'. Epistemology and ontology have been separated only by a metaphysics assuming a difference between 'human and nonhuman, subject and object, mind and body, matter and discourse' we should think of instead of an onto-epistem-ology' — 'the study of practices of knowing in being' this will help us understand the ways in which 'specific intra-actions matter'.

[One problem is that I suspect a lot of this is definitional. Take a phenomenon, something that has components inside it, interrelated and co-constituting each other. Intra-actions which also emanate from within the phenomenon are capable of agential cuts, however which separate out the components and put them into more limited relations, causal ones for example. The thing is that these separations and relations can be quite persistent and widespread, as with the effect of gravity, so what exactly is added by a philosophical speculation about whether there is some inner connection as well? Why do we need such a general ontology, if local effects seem to be the most important in producing what we can see of the material world? Barad's argument seems to be that some possibilities are excluded. Perhaps new technologies can reawaken some of them, or new social practices — but everything will depend on those local practices and what affects and constrains them and whether they can be changed or not. Her approach overtheorises interrelationality.

There is the other issue of tautology. Certain concepts 'entail' each other, but what sort of entailment is this? Phenomena entail intra-action, but is that a definitional matter — phenomena must contain intra-action or presuppose it, and intra-action itself works with phenomena not isolated components. Intra-action both explains and surpasses normal causality. The whole thing can look like a philosophical game where implications are pursued into science fiction. The possibilities for feminist politics are alluded to here and there, together with words like 'power', but does this fulfil the usual function of making philosophy relevant — as usual, is it necessary for feminist politics to understand quantum theory?

NB 'responsibility' here seems limited to political activism? But we are responsible for and to everything in the later versions]

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