Abstract
Keywords
Introduction
This Socrates Chair is titled: Philosophical reflection on making and societal embedding of technologies in the humanist tradition. To understand what I mean by the societal
An important question that I would like to work on in the coming years and that I would like to share with you today, is what could visual art afford for people involved in making technologies? Could artistic practices show us ways to embed technologies better in society?
Visual art is of course a very broad notion. To make it more specific, I will today be focusing on the way we make it in our own practice, at RAAAF [Rietveld Architecture-Art-Affordances]. RAAAF is a multidisciplinary studio, operating at the cross-roads of visual art, architecture and philosophy. It was founded in 2006 by my brother Ronald Rietveld and me. At RAAAF, we make seemingly impossible site-specific interventions in the living environment based on an urge to explore and reflect on what is possible in contemporary life.
Here is an example of the kind of visual art that we make (Figure 1). This artwork is titled Bunker 599, 2010, RAAAF | Atelier de Lyon. Photo: Allard Bovenberg.
To further clarify the kind of visual art that I will be focusing on today, I would like to show you a short movie. Movie stills; the making of Deltawerk// Link to movie: The making of Deltawerk//.
With
The take home message of my lecture today is that artistic practices afford embedding technologies better in society. I will describe three aspects of our making practices at RAAAF that may contribute to improving the embedding of technology in society: the skills of working with layers of meaning; the creation of material playgrounds; and the openness to the possibility of having radically different practices. 1. Working with layers of meaning: Our concern in making RAAAF's site-specific installations is not with solving problems, or with the design of instrumental objects, but with working with the layers of meaning our artworks can open-up. 2. The setting-up of material playgrounds: At RAAAF, we take pleasure in joining forces with materials, intuitively exploring what can be done with materials in our engagement with them (Malafouris, 2014). 3. Openness to the possibility of having radically different socio-material practices: The process of making of our interventions is characterized by an important openness to unconventional possibilities for living in ways that are very different from what one generally tends to take for granted. We enjoy imagining and creating such new worlds. Often artists go further or go beyond where anyone has ever been so far.

I will use three RAAAF projects that illustrate each of these three aspects of making artworks. This will foreground some of the Inside the sliced object. 
Section 1. Working with layers of meaning
The first skill is for opening-up and connecting layers of meaning in the process of making a site-specific artwork. I will take 
For us as makers it was important that the bunker should offer multiple layers of meaning. The primary act by RAAAF | Atelier de Lyon was not adding something, it was cutting a seemingly indestructible object; slicing the bunker open. By taking away something rather than adding, the bunker’s embedding in multiple practices is opened up to experience. First cut. 
As mentioned, it was a municipal UNESCO nominated monument when we cut into it (Figure 6). The bunker’s status as cultural heritage is part of the context that generates the meaning of our intervention. The standard practice is to consider monuments as objects with a commemorative value that need to be protected and persevered. Cutting into and opening up such an object seems to contradict, and therefore question, this convention.
By compromising the physical integrity of this historical object, the artwork questions our understanding of what monuments are.
Now let me briefly reflect philosophically on the relation between conventions or established practices and meaning. We can think of meaning as having different sources (Merleau-Ponty, 1945/2002, Merleau-Ponty, 1968/2003; Wittgenstein, 1953; Rietveld, 2008). Some of the meanings attaching to aspects of the environment (including artworks) come from
Much of the meaning people find in the world originates in
One thing that is both interesting and somewhat disturbing about practices is that even though they are a source of meaning, we often take them for granted. We take for granted that we preserve monuments, that we put objects of cultural heritage on a pedestal in a museum, that we do not touch them, and avoid that anyone destroys them. An intervention like
The notion of
There are close ties between affordances, practices, and skills (Rietveld, 2008; Rietveld & Kiverstein, 2014; Rietveld & Brouwers, 2016; Van Dijk & Rietveld, 2017; 2018; Rietveld et al., 2018; Kiverstein et al., 2019; Zijlmans, 2018). Practices educate and entrain their participants and provide a common ground. Practices can be seen as a particular communal way or pattern of engaging with certain affordances rather than others. The education of attention of novices by more experienced practitioners makes it possible for people to acquire skills. This process of learning changes the person’s embodiment and affective sensitivity to the environment (Colombetti, 2014). It makes it the case that for those who partake in the practice some affordances have more significance or invitingness than others (Rietveld, 2008, p.992). A side-effect of this skilled bias or selectivity is that some affordances tend to be ignored by people in the given practice. Practices typically generate a selective openness to those affordances that allow us to go on in the same way as the other practitioners (Wittgenstein, 1953), to act according to the established norms, but the cost of that conventional selective openness is that people also habitually ignore many of the more unorthodox affordances.
Artworks generate meaning by offering new affordances, new possibilities for engagement with the world, including affordances for reflecting on the meaning of the artwork. Artworks offer possibilities for reflection both to their makers and to other people experiencing them. What takes form in artistic practices of playing with materials and in the artistic process of making more generally are often
Making an artwork is working with layers of meaning. Crucially, in the process of making at RAAAF, we are typically very sensitive to how our interventions will influence and intervene in different practices. That kind of awareness is important because the meaning we make with our work is in part derived from these practices. So, when we make something at RAAAF we attune to, that is, coordinate with, these practices (Van Dijk & Rietveld, 2018). We are very
The realized artwork has an openness or communicative power that goes beyond what we as makers were aware of in the process of making. It can affect people in unexpected ways. Someone from China experienced the cut through military object as a moving object of peace, for example. 4
Of course, some artists are less reflective, dealing with their materials mainly intuitively, but then often they will team up with a curator who does the work of situating the artwork; placing the artworks in the context of wider practices. This kind of collaboration between artist and curator is so common precisely because art offers the possibility to work with layers of meaning and open up new meanings.
I have now described the first aspect of what art can afford for makers of technologies: the layers of meaning that we attune to in the process of making and that are skillfully “woven into” the formation process of the artwork (cf. Ingold, 2013). Artists master the valuable skill of relating deeply to the different practices that are the sources of meaning of what they make.
Section 2. Material playgrounds
The second skill I will describe is the exploration of the possibilities materials offer through the creation of material playgrounds. Here is an example. This is a 12 meter high sandblock on the beach that RAAAF and Atelier de Lyon are currently proposing as an artwork here in the Netherlands (Figure 7). Scaling up from 10 cm to 100 m³ biological sandstone. Photos: Deltares, TU Delft & Volker Wessels.

The application of this fascinating technology has, however, ended up in the “valley of death” where many innovations get stuck because there are no prospects for them to be taken up in a practice. One of the possibilities, a visual arts project can offer to makers of new technologies is a material playground for scaling up technologies like bio-sandstone. The size of our sand block, which is several times higher than what the engineers have been able to make so far, will challenge them to scale-up but also give them the kind of free space for exploring the possibilities for scaling up.
But importantly, embarking on the project of creating the artwork also amounts to the creation of an explorative journey for ourselves at RAAAF: the creation of our own material playground. Experimenting and freely tinkering on scale 1:1 with new technologies and materials, we can imagine new futures. At the same time, the
We have been fascinated by the bio-sandstone technology for years. Even when the studio started, back in 2006, we were already thinking of possibilities of this bio-sandstone for creating all sorts of interventions. In general, material playgrounds at RAAAF allow for freely and intuitively
For making Material exploration for Sandblock. Photo: Ricky Rijkenberg Prix de Rome architecture 2006, first prize Ronald Rietveld. Generating 

Once you realize that the billions of new people who will be living on our planet in 2060 will need houses, one of the urgent challenges for architecture is to provide places for them to live. Places that are built in a sustainable way and use bio-cement and locally available material, like sand from deserts and river banks, rather than bricks or concrete. From the perspective of global warming, this is an urgent challenge because cement is the key ingredient of concrete buildings, and the cement industry already had one of the largest CO2 footprints globally in 2016. 5 And, ideally, architects would provide houses that do not need air conditioning but are naturally fresh, for example, because they are underground.
We have been intrigued by this new material for many years and what we would like to do next is to join forces with the engineers at TU Delft and their bacteria (see Van Paassen et al., 2010), and together stimulate reflection on this new era for architecture. The project we envisage will mark this new era not by means of a house or any other practice application, but by making an artwork in the form of the huge 
This was the second aspect that artistic practices have to offer to makers of technologies for embedding these technologies. The first skill I mentioned was that of working with layers of meaning by being sensitive to multiple meaningful practices. The second skill was the creation of material playgrounds for exploring experientially the potential of the things we make.
Section 3. Openness to the possibility of having radically different practices
The third skill I will discuss is that of being open to possibilities of having radically different practices or ways of living. Importantly, the openness to unconventional possibilities is The End of Sitting, 2014, RAAAF | Barbara Visser. Photo: Ricky Rijkenberg.
To explore these questions, we started to play with the available materials in the studio of Barbara Visser, the visual artist with whom we collaborated. In this material playground, we began simply by experientially exploring the possibilities for working in different positions.
Here you see some examples of the playful exploration of the human landscape of affordances. In that process, we made many discoveries (Figure 13). For instance, we discovered that a certain angle feels great for reading when you are standing in a supported position. When you are leaning back and your feet are elevated, it feels even better (Figure 14). When you place a laptop on a support in front of you while you are supported standing, it also feels better and often you even forget that you are working standing. We were playing with the body in interaction with materials, improvising and exploring what kind of affordances for supported standing we enjoyed. The body of the person makes all the difference for how they experience these real-life mock-ups. Playful exploration at RAAAF. Photos: Barbara Visser. Tilted feet. Photo: RAAAF.

In Figure 15, you see changeable scaffolds for supported standing. Everything can be adjusted and one of the main things we would do in the process was feeling what we would experience as good and what felt wrong or awkward. Affective experiences like these give direction to the process of experimentation and improvement in making (see Rietveld, 2008; Van Dijk & Rietveld, 2018). The position I am standing in Figure 15 was a position that did not feel right and demanded adjustment. A position that demanded adjustment. Photo: RAAAF.
To further support our own process of coming up with new ideas we built a strong metal frame in which we could test out all kinds of materials. Through bodily and affective engagement with the materials suspended in the frame we could explore what we enjoyed and what positions did not feel good. As you can see (Figure 16) the frame that we made, could be tilted so that we could enjoy leaning back and having sloped feet support. We suspended many different kinds of materials: rubber inner tires of bikes, ratchet straps, carpet, rubber sheets, wooden planks, etc. Figures 17 and 18 show some more bodily explorations of what is possible with the materials. Tilted frame. RAAAF | Barbara Visser. Material playground: explorations in frame. RAAAF | Barbara Visser. Feeling the position. RAAAF | Barbara Visser.


This process of experimentation for
Some images of The End of Sitting, RAAAF | Barbara Visser, 2014. Photo: Jan Kempenaers The artwork at looiersgracht 60. Photo: Jan Kempenaers.

Building the installation and seeing people enjoying the unconventional structure also creates hope: it suggests that it is possible to change entire practices; that we could live very differently. People could experience what it would be like to live by a different set of rules. So, the socio-material practices in which we are situated are
The magazine
You may wonder though what all this has to do with embedding technologies. To understand this, it is important to remember that technological innovation need not be digital, robotic, or nano.
The empirical scientists Rob Withagen and Simone Caljouw used the artwork as a living lab to investigate how it would be to work while supported standing (Withagen & Caljouw, 2016). The art installation raises all sorts of questions: How do people experience working in the installation as compared to a conventional workspace? What does it mean for their wellbeing? How much energy do people use? If you were to work eight hours a day in it, would you spend enough energy to replace the gym? These human movement scientists and ecological psychologists did a study with four different camera points to observe how their subjects behaved in this artwork and interviewed them.
In sum, what A materialized philosophical worldview. Close up of 

The process of making this artwork illustrates the skill of being open to the possibility of having radically different practices, and of breaking our habits more generally, which is a very important affordance in our contemporary life. The various mock-ups and the art installation afford feeling, affectively experiencing, and imagining what it would be like to live by a different set of rules, to live the good life differently.
Conclusion
In short, I propose that artistic practices afford embedding technologies better in society. My examples from the artistic practice of RAAAF offer suggestions of how this can be done: it is an integrated set of skills that allows for this. First, a crucial skill in the process of making is that of being sensitive to and working with the different layers of meaning that interventions can have for people. In order to make technologies that are well embedded in the human form of life, engineers could develop the skill of relating more sensitively to the socio-material practices they are intervening in. They could try to become aware of the different layers of meaning that a certain kind of technology could offer to different people in these different practices. Second, an important skill in the process of making is setting up material playgrounds for exploration in which embodied sensing, feeling, and the pleasure of making take the lead. Third, artists have the skill of opening up to possibilities for questioning and transforming established practices. They open up to unconventional affordances, including provocative possibilities for changing what we—and this “we” can include the artists themselves—take for granted; for breaking habits. They are also masters in making tangible that we could live by different rules. Researching this skill set and “translating” or connecting the results to situations in the practices of engineers and scientists will be a project in my Socrates chair.
One of the established practices that I feel an urge to question is that of doing academic philosophy. Normally, philosophers write texts without images. However, as Alva Noë (2015) has argued, artworks that question our conventional practices and norms can be seen as a way of doing philosophy. Can we further develop this “philosophy without text,” an interesting philosophy of “show, don’t tell”? Can academic philosophy be done non-discursively, by visual means? Can philosophers join forces with visual artists to investigate non-verbally how we could live differently and perhaps better? To explore and unlock its potential, I believe it is important for the practice of philosophy to develop the genre of philosophical art installations further in the future.
Before we turn to a final movie, I would like to say a few words on what else I would like to work on here at the University of Twente.
I hope to contribute to educating engineers that make humane technologies; technologies that are well embedded in society. To realize this, I have the ambition to give guest lectures in all the different honours programmes here at the UT: from Mathematics to Science, and from Philosophy to Processes of Change. My work is not only fundamental, curiosity driven research but also has the potential for practical applications. I would like to collaborate with engineers and scientists here on campus who are interested in developing ways of living better with technologies. Given global challenges such as climate change, screen-addiction, and obesity, I believe that the possibility of breaking our habits is urgent at this moment in time. However, changing behavior is also notoriously difficult. There is a huge gap between
I would like to end this inaugural lecture by showing a final movie, Still frame 
Using the
You will see in the Flak tower, Vienna. Historically burdened heritage. Photo: Thomas Ledl. Flak tower in the center of Vienna. Still from 

In the movie, we transform the tower into an artwork in the center of Vienna and generate multiple layers of meaning with it. As such it becomes exemplary of how RAAAF’s art-based approach can deal meaningfully with historically burdened heritage, which is typically left untouched because no one wants to get their fingers burned when addressing it. Think of places related to slave trade here in The Netherlands, nuclear power plants, or places related to the Atlantic Wall and other European terrorscapes of the world wars.
The material playground we created in this project explored the possibilities of state-of-the art hydro-demolition technology (Figure 26). We used the focused, high pressure “water-lance” to destroy meters of concrete around the reinforcement steel (Figures 27 and 28). We started to work in this way out of our fascination with the power of water and by the enormous destructive force of this technology. We felt the urge to experience it ourselves and play with it. Making a material playground for that, we built a kind of set where we could test this technology and its power. This playground constructed for Material playground. Exploring the possibilities of hydro-demolition for Material playground. Photo: RAAAF. Reinforcement steel revealed. Still from 


Moreover, the skills of architecture historians and architects allowed us to find secret original construction drawings, which we used to imagine and design this 3-D world. For animating this 3-D world we used the latest advances in digital technology. So, in this case we created not only a physical, material playground to explore and imagine the possibilities of a new technology, but also a digital one. The resulting movie 7 afforded sharing with you our vision of how we could transform this kind of burdened heritage.
Third and finally, I would like to address the openness to the possibility of having radically different practices involved in
Ik heb gezegd.
