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Research by Gauthier Roussilhe.

For Designers: Personal Notes and Essays for Designers’ Emancipation. Interaction

It seems that today the design community has agreed on key principles when it comes to interaction and experience. Interaction must aim at a maximum of flow; the user must not be momentarily stopped in his/her experience by false tracks, errors or dead ends. According to the advice from a company specializing in interface creation software, the interface must be: clear, flexible, familiar, efficient, consistent and structured. The principles of the user experience share the same goals: “Do not put any obstacles to overcome, just pave the road for an easy ride. Your designs should have intentional and obvious paths and should allow people to complete tasks quickly and freely.” We must not confront the user with a troubling, strange or even complex situation. Nevertheless, the advice above does not determine the nature of the interaction: a clear, flexible interaction (etc.) can be long and tedious. It can be equally short and simple by following the same principles. Yet, the broad community of designers interprets the creation of interfaces and experiences as a process to simplify the user’s experience, regardless of its nature. This seems to have been largely accepted and amplified.

Hence, it seems legitimate to ask the following question: Should all experiences be simple and fluid? Is the simplification of experience a universal principle that must apply to everything? Is that the intrinsic goal of “good” design?

I. The Presuppositions of Simplicity

First, let’s understand why designers want to make the experience easier. My first guess is that the original context of the interaction is considered too complicated (signing up, choosing a product / service, ordering, paying). My second assumption is that any friction is considered negative in essence. Friction can discourage or delay the impulse or act of purchase, or the user will not arrive at the service or information sought. My third assumption is that a simple experience saves the user time, and this is one of the “metrics” that the designer aims for. In that case, what are the metrics that define how the designer works and who defines them?

If we examine the first assumption about the original context of the interaction, then we must ask ourselves how the original context is complex and especially in relation to what. Is it complicated because of the navigation process, formalities, technological standards, security steps, etc.? Is it complicated with respect to the capabilities and behaviors assumed / imagined / observed in the target user? Even when we want to test a service / interaction with a user, it has already been thought out to be simple. The will of simplicity is so interiorized that it completely obscures its counterpart. In short, any user test is biased because only one model is sought out and refined: the simplification model. Proponents of simplification offer convincing arguments, highlighting the need for familiarity or the need for visually simple interfaces. However, how do you measure the complexity or real simplicity of an interaction / experience if the measurement scale is incorrect?

Ultimately, is this complicated by the social, cultural, economic, moral or political standards that the user embodies? Indeed, an experience is based on an original context that links the technology used and its prescriptive standards, which the designer can hardly circumvent. The latter therefore tries to align these inherent constraints with a more or less complete and relevant user profiling and with all the norms specific to the human context – that is to say related to the social context in which the user evolves. So, there is indeed a complexity inherent in the context of the experience with which the designer must deal: standards and technological complexity; and standards and human complexity.

My second guess to justify the simplification of the experience is that friction – this momentary mixture of doubt and complication – strongly harms the supposed goal of the experience: the act of purchase / consumption of a product or service. Indeed if we “slow down” the user in the activation of the experience, then we are less likely to achieve its goal. In this sense, designers consider that the function of buying an article in a single click (1-click patent) is a good design, its relevance being the subject of a patent filing ardently defended by Amazon. But this rests on a very strong assumption: one imagines that the user shares the same goal as the proposed experience. After all, if the user engages in the experience it is because he sees it as in his own interest, right? However, the purpose of the experience lies in the set of goals set by the company issuing the service / product, and this set of goals is hard for the user to discern. They are sometimes even consciously hidden: we see free applications that provide a basic service (compass, elevation, flashlight, etc.) but their real purpose is to capture data to resell. In that sense, the lack of friction can be treacherous for the user: even if the fluidity of an experiment may fulfill the goals set by the client, it can also go against the integrity of the user. Then, perhaps the aim for designers is to achieve seamfulness, as has been explored by Matthew Chalmers: “Seamful design involves deliberately revealing seams to users, and taking advantage of features usually considered as negative or problematic.”

From the suppositions mentioned above, what seems to be a paradox of our discipline emerges: designers assume that the purpose of the presented experience is equivalent to the user’s goal. They believe that the user always expresses a conscious and reasoned choice in accessing the experience. If someone reads a book it’s because they wanted to read a book; if someone uses a service, it’s because they wanted to use the service. This assumption offers a very simplistic view of what living as a human being really is. For the sake of our designed experience, we assume that users always act following their best judgement – in this case their “best judgement” is to use our service.

It might be worth mentioning to designers the Greek concept of “akrasia” (from Plato’s Protagoras), meaning the gap between knowing what is good for me (my best judgement) and still not acting accordingly. Later, in the Nicomachean Ethics, Aristotle expands on this topic, providing three cases in which someone can go against his own best judgement: ignorance of particular facts; being under the influence of passion; and the necessary choice between several opinions. These three levers have been particularly useful for designers thus far, maintaining the user in an akratic state. In that sense, it is possible for a designer to circumvent someone’s best judgement by providing a service that meets the user’s goals by maintaining the “akratic state of the experience”.

Thus the UX design literature encourages designers to meet the user’s goals and needs by improving the experience itself. However, the experience has its own goals and needs, which are expressed by the client and interpreted by the designer. Thus, in enhancing the experience, supposedly in alignment with the user’s goals and needs, designers generally improve the goals of the experience itself, as opposed to the user experience.

My third guess, concerning the simple experience as a time saver, is related to the previous conclusion. A frictionless experience must logically be a faster experience. A simple experience is an experience that more effectively fulfills its goals (which are not necessarily those of the user, as explained above). However, the experiences offered very often vary from one service to another: a social network has been designed to be a simple experience, or at least a well-accompanied experience; yet, these services are large consumers of the user’s time without a significant gain for him / her and without the emergence of a specific goal on the part of the user. Moreover, this problem has recently led to public health issues, public policies, commitment and perhaps even responsibility. The experience of a social network helps us demonstrate that a simple experience does not save time every time. It can even become a trap, in which the user ends up as like a hamster, a prisoner of the simple experience of its wheel.

If saving a user’s time is an official KPI (Key Performance Indicator), where do those KPIs come from? KPIs are goals set by the client for the designer to pursue. They are the real mundane indicators that drive the experience design: conversion rate, completion time, time per task, task success, system usability scale, etc. They are broadly used as complexity controls. In this sense, complexity refers to the user’s goals, because they cannot be determined as clearly as the client’s goals. A user doesn’t come with its own KPIs, and it is supposed too costly to get a sense of what a user wants. So, an experience is a one-sided relationship, in which only one part is providing its rules to control the other. In this biased situation, “user experience” often refers to user control in most cases. As Christina Xu would put it: “The pursuit of simplicity is often an endless pursuit of perfect user control.”


II. Friction as Human Interaction

So far I have been careful not to define what I call “friction” as it seems to reflect strong ideological aspects. The most redundant definition is “anything that prevents the user from accomplishing his purpose”. “Friction” can be synonymous with slowing the economy in the form of micro-slowdowns of the consumption cycles that are necessary for growth (“more delivery, less friction”). “Friction” can also be the standards related to the technological system being used. “Friction” can simply be synonymous with bad practice in the design of a service. Hegemony emerges from the design community, where friction is considered the weed of design and must be eliminated.

Many designers have addressed the issue of friction. Some have become fervent advocates; others have understood its usefulness to some extent. Interesting models have emerged to help designers to grasp the question of memorization, knowledge and self-awareness in the experience.

For my part, it seems to me that what we call friction is the meeting between the goal(s) of the user and the goal of the client of the experience (whose designer is the messenger). This friction is more of a “natural” phenomenon that emerges from experience.

This phenomenon seems little understood and generally rejected by the designer because it should be agreed that the user can have multiple goals (related to different socio-cultural contexts), singular abilities (differences in skill levels) and motivations that may be interiorized or clearly expressed. It is worth noting, however, that the client must navigate its own complexity. Sometimes that complexity is shared with the user, but the client went through a decision stage in which it decided on its goals and therefore is able to express and gather them into a economically sound, rational strategic view.

How, then, do we design an experience by taking the user (and his goals) into account in the face of such complexity? Either by reducing the scale at which we can work effectively (although this is hardly complementary to the client’s goals), i.e., by positioning ourselves at the other end of the line; or by working only with the specific, expressed and identified goals of the client. It seems to me that this avoidance of friction in the practice of design stems more from a refusal to engage in human complexity, which is unmanageable but nevertheless very real. The technological complexity deployed and used in design becomes, conversely, ultimately much more appreciable because it is limited, short-term and understandable.

Moreover, friction is not necessarily synonymous with extra time or slowing down. The time invested in friction can be time that is gained over the entire experience or time that is gained in the set of experiences repeated by the user. The first instance will take the longest; the second, a little less, etc. The long-term learning process can gradually reduce the amount of time spent on friction, and the user wins as he will have learned to negotiate with a complex experience and become more resilient to future problems.

We can clearly see all the complex features of the experience that pushed most of the design community to opt for the simplicity of the experience as a universal principle of default design. We have more or less decided to avoid any human complexity and therefore social complexity; it would have taken time, and the economic model to which the design responds would not allow it. In fact, the current model of experience design is based on the construction of “experiential highways” leading straight to the toll, built far from the reality of social and human interactions. Conversely, a “complex” experience would be a secondary road network with its difficulties of navigation, its crossing of cities and villages, its many choices (but also with the chance of meetings, more or less pleasant), its parallel services and its interactions on the margins.

Concluding with the metaphor of the road, I would like to quote Julian Bleecker from the postface of Sliding Friction: “Friction is a force exhibited at the point of contact between two objects. As a metaphor, friction is a powerful image describing where life happens.”


III. Where to Place Human Interaction?

This model seems to be based on a modern Western view of experience, where interaction with another human is the user’s last resort. As such, many of the technologies implemented in the experience are aimed at avoiding this inevitable encounter: chatbots, extended FAQ with search engines, or even pseudo-IA and predictive algorithms. Somehow, we handed our concept of trust over to the technological world, thinking that technology would produce fairer outcomes, because we always forget that technology isn’t neutral and because we still believe that technological trust will behave as an organic trust.

Of course, this model also reflects the mechanisms of the Western labor market where a human employee costs more than an API. This dynamic is no less based on a presupposition that thinks human interaction (understanding with another human) is inefficient, poorly performative, too complex, difficult to quantify and therefore too expensive. In addition, the interaction with a technology agent does not commit to the immediate resolution of the possible problem encountered by the user. At best, the problem is part of the scenarios programmed into the technological agent and can be solved. At worst, the problem joins the list of tasks to be manually processed by a human agent; the resolution is postponed.

This Western model does not stop to consider the rich functions that human interaction fulfills. However, if we decide to look at how experience is built elsewhere, then we can also see how the richness inherent in human interaction in experience emerges. For example, the Chinese concept of “má fán”, as explained by the ethnographer Christina Xu, refers to the concept of unexpected events, unexpected complications that will inevitably make you move away from what you wanted to achieve today. The Chinese taxi service “Didi” implements a practice that would seem very strange in a Western service: when you book a taxi, the driver will immediately call you to find out exactly how to reach you and recognize you in order to avoid a situation of “má fán” later (spending time searching uselessly). This would be considered a friction in North America or in Europe. This example makes it possible to highlight the inversion of the human role in the service experience. This Chinese taxi experience begins with a human interaction, which is sometimes complex and can produce “friction”, to ensure the ease of use of the service. A similar experience in Europe or North America would tend to guarantee the technological efficiency of the experiment, leaving human interaction as a last resort.

A simple experience is associated with a controlled experience that will generate the least problem of understanding and use. Conversely, a complex experience would be an uncontrolled experience that could lead to problems of understanding and use, or worse, unplanned complications. It seems to me, then, that the nature of experience, as it is understood today in the United States or in Europe, rests on the assumption that human interaction is complex and that the positioning of this interaction in the temporality of experience defines its nature.

I would like to make a simple reminder here of what is meant by “complex” and “complicated”. Here, I am referring to Edgar Morin’s definition, where the “complicated” is an accumulation of simple elements: for example, the accumulation of tabs in your browser is not complex, but it gives the impression that it would be complicated to consult them all. The “complex” is defined as the interdependence and interrelation of elements belonging to one or more systems, which cannot be summarized in a total law or principle.

In this sense, human interaction in experience is certainly complex. This interaction involves a socio-cultural, political, technological and economic context in which experience must be combined. The user himself has abilities, values, and intentions that enter into the mix. But, after all, is the design not at the service of the user? Should the designer not rely on these complex contexts, and the values ​​and intentions that emerge from them, rather than avoiding them? After all, if we strive to simplify all the experiences of the user, who is only one of the facets of a human being (who may also be a mother / father, citizen, etc.,) aren’t we betraying his / her values ​​and expectations? Should the experience of buying or selling a house be a simple experience, although it represents a major event in the life of an individual or a couple? Should the major events in a human being’s life not be complex experiences that deserve to be celebrated? A few years ago I conceptualized an online service for writing and activating wills. The process of choosing beneficiaries for each asset takes only a few minutes and functions with great fluidity. The result of this operation is ultimately to transfer ownership of my house to someone else, but the experience has never conveyed the importance and the symbolism of this gesture. The social rite of a notarial meeting, although potentially exhausting and complex, at least has the capacity to reflect the seriousness of the decision taken and thus produces a necessary value for the “user”.

It seems to me that it is in these multiple frictions that value is created – which is certainly less quantifiable than economic data. By going so we are getting closer to the essence of social rites: we sometimes engage in social or other experiences, which are in principle useless from the point of view of individual logic, but which give value to our actions – a sense shared by the same social fabric. The practice of design should examine these rites in order to understand how to imagine the rites of experience or, even better, how to create the space necessary for the emergence of social rites.


IV. Seamless Equals Meaningless, Frictional Equals Meaningful

If we consider the complex experience – this experience of friction – as a possibility, then how is it articulated, and also how does it relate to the simple experience? At first, it is a question of differentiating the respective goals of each of these experiences. As mentioned above, the simple experience is ultimately fast and effective, leading to the act of purchasing or using an identified service. We tend to make this course as pleasant as possible so that the experience is repeated, but also in order to build familiar brand environments. This type of experiment is not intended to memorize a specific “knowledge” or to perform a complex interaction since the interfaces are designed to be used as simply as possible, without any prior knowledge. In these circumstances, it seems that the experiment is of little value to the user. The interface guides the user from A to Z and, in this sense, it should take only a short time.

Indeed, most of the experiments proposed today do not seem to favor the memorization of the experience as such but aim to leave a feeling of comfort, without friction. Tinder’s experience is not aimed at memorizing each profile that is encountered – on the contrary. Facebook’s experience is not aimed at memorizing the content offered by your network or sponsored content, nor does it promote an understanding of the topics covered. Most current social platforms rely on impulse mechanics that will quickly internalize the user’s behavior as desired by the designer and his / her client. The intrinsic speed of these mechanisms excludes any long-term processes: memorization, comprehension, reflectivity.

An initial modelization of the simple experience is possible. A simple experiment should mobilize a minimum of the user’s time because it does not tend (or should not tend) to positively affect the values ​​of the user over the long term. In that sense, it is of little value for the user. Thus, the simple experience should be fluid because it is without intrinsic value for user: it is ideally fast, fluid and efficient.

A complex experience should aim at mediating user values ​​involving human and technological interactions over a longer time frame. It seems to me that the experience – that is to say the meeting between a user and an interface – should produce a certain value only if the user decides that it has value for him. Yet we never ask the question in a direct way. How does one create value for the user if one does not know whether the experience in itself has value for him? Buying shoes on the internet does not have the same value for me every day, and this same potential value is relative to an infinite number of contexts: Am I buying for myself, surprising my partner, for a specific activity, etc.? I believe that, instead of speculating on the values ​​of the user, it would be better to ask him at the beginning of the experience whether it has value for him / her and modulate the experience accordingly. What I call “value” here is the ability of the experience to resonate with the user’s expectations, motivations, intentions, reflections – in other words, whether it resonates with the mindful user. But this process of resonance takes time and necessary friction. The complex experience therefore aims to create the necessary conditions for the user to appropriate the experience and negotiate (his / her goals) with it in order to enable a lasting resolution. This is no doubt a process of learning, understanding and self-awareness.

It is therefore a question of showing new forms of experiences based on the values of the user, the time of the experience, and the friction (necessary or not). A complex experience will more regularly integrate human interactions, generating friction but also unexpected resolutions, aimed at a global process of learning and understanding. A simple experiment will aim for immediate effectiveness of the clearly identified user’s request, reducing the time required for this resolution.


V. Simplicity Is an Ideology, So It Can Be Challenged

In the end, I believe that experiences proposed by designers, whether simple or complex, should be based entirely on a fundamental parameter: choice. Indeed, the user should be able to choose what type of experience he wants to use based on his intentions and values. For example, when a user accesses a shoe sales website, he may be asked if he values the fact of buying shoes today. Depending on the response, the user will be integrated into a more or less complex experience, where he will also be able to learn more than he came to seek.

This mechanism has existed for a very long time in a primary form in the interfaces of software and video games. This is simply to offer access to the advanced settings. But this mechanism assumes that the user knows what he is doing and he has nothing more to learn. We need to reconstruct this mechanism by thinking of it as the starting point for the complex experience, for learning and therefore for fulfillment.

Finally, what designers call “simplicity” is an ideology more than a principle of “common sense”, and like any ideology it can be challenged. It seems to me that the ideology of simplicity has more than ever to be challenged in view of the harmful impacts produced by the designer on the user. This ideology produces a dialectic that opposes two principles: helping brands to sell; or helping the user to understand. The real consequences are that user experience design pursuing the ideology of simplicity is nothing more than user control design. To quote Christina Xu again: “The more simple the design, the more control the designer has stripped away from the user.” This fundamental conflict of design cannot be hidden indefinitely. It is beginning to come into the open and must be absolutely debated by the design sector so that everyone can take responsibility and formulate their ethics accordingly.

Research by Gauthier Roussilhe.

urbanNext (July 18, 2024) For Designers: Personal Notes and Essays for Designers’ Emancipation. Interaction. Retrieved from
For Designers: Personal Notes and Essays for Designers’ Emancipation. Interaction.” urbanNext – July 18, 2024,
urbanNext September 10, 2018 For Designers: Personal Notes and Essays for Designers’ Emancipation. Interaction., viewed July 18, 2024,<>
urbanNext – For Designers: Personal Notes and Essays for Designers’ Emancipation. Interaction. [Internet]. [Accessed July 18, 2024]. Available from:
For Designers: Personal Notes and Essays for Designers’ Emancipation. Interaction.” urbanNext – Accessed July 18, 2024.
For Designers: Personal Notes and Essays for Designers’ Emancipation. Interaction.” urbanNext [Online]. Available: [Accessed: July 18, 2024]

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