Spatial Thinking Foundation Paper
Antonio Scarponi
16.04.2026
Version 1.0 DOI: https://doi.org/10.5281/zenodo.19651393
Abstract
Spatial thinking is defined here as an epistemic field of practice engaging the conditions through which spatial relations emerge, stabilize, and transform. It departs from conventional understandings of space as a neutral container or cognitive domain by positioning design as an intervention into relational configurations rather than discrete objects.
Tracing a trajectory from transformations in causality to the emergence of urbanization and the intensification of networked and planetary conditions, the paper argues that spatial practices can no longer be understood through object-based or territorially bounded approaches. Instead, they operate within distributed and non-linear systems in which localized interventions produce cumulative and potentially irreversible effects.
Within this context, spatial thinking designates a field of action articulated through different moments of stabilization—ex-ante (envisioning), in-fieri (sensing), and ex-post (assessing)—as temporal positions of intervention.
Design is thus positioned as an epistemic practice operating at the threshold between what can be thought, perceived, and made actionable, and what stabilizes as form. “Before irreversibility” names this field of operation, where spatial relations remain open to transformation.
Keywords: Spatial Thinking, Epistemic Design, Relational Systems, Design Theory, Irreversibility
1. Becoming
Spatial thinking has been widely understood as a cognitive capacity related to orientation, representation, and spatial reasoning[1], and more recently as a set of analytical tools within design and planning practices.[2] This paper departs from these interpretations by defining spatial thinking not as a skill, method, or representational construct, but as an epistemic field of practice engaging the conditions through which spatial relations emerge, stabilize, and transform over time.
Within this field, spatial practices do not belong to a single discipline. They emerge across heterogeneous domains of knowledge insofar as they engage - directly or indirectly - with the transformation of spatial relations. What defines their relevance is not disciplinary affiliation, but the mode and moment of their intervention within processes of stabilization.
Design, in this sense, designates here those practices that intervene in the transformation of spatial relations across different stages of stabilization. Space is not assumed as a neutral container or geometric volume, but as a relational condition continuously produced through the interaction of material, institutional, and cultural processes.
Spatial thinking therefore operates not by describing space as it is, but by intervening in the relations that make space what it is and what it may become.
2. The Epistemic
Within this field, design does not primarily operate on objects, but on the conditions that make them possible. Form is neither the origin nor the destination of design, but the temporary stabilization of relational processes. This entails a shift from an ontological understanding of design—concerned with what things are—to an epistemic one concerned with what things do and with the conditions through which they become thinkable and actionable.
Design, in this sense, does not simply produce artifacts; it structures the conditions through which relations emerge. The observer is not a fixed point, but a situated and evolving condition, continuously reconfigured through the relations it engages.[3] As such, it cannot be understood as external or neutral to these processes. Observation does not occur within a pre-existing condition; it participates in the ongoing formation and stabilization of relations.To observe is not to stand outside a condition, but to intervene in its ongoing formation.
3. Condition
If we were to cut the Earth open like a ripe fruit, human life would appear as a thin layer on its surface. This image reflects the concentration of human activity within the Earth’s surface systems. [4] Civilization unfolds within this thin layer—a threshold between lithosphere and atmosphere—where biological, technological, economic, and political processes converge.
Here, spatial practices intervene by producing decisions that take form and accumulate over time. What accumulates is not a collection of isolated objects, but a stratification of decisions that materialize, sediment, and persist.
Space, therefore, is not primarily volumetric, but a condition of relational density. Spatial thinking attends to the processes through which relations take form, stabilize, and are layered over time.
4. Without Design
Within this surface condition, human populations have historically remained locally bounded, their growth constrained by disease, scarcity, and environmental limits. A decisive shift occurs in the nineteenth century, as these constraints begin to loosen.
The work of Ignaz Semmelweis marks a critical threshold. By introducing hand disinfection in maternity wards, he reduced mortality rates without relying on an established germ theory.[5] This minimal, localized intervention altered a relation—between human bodies, medical practices, and microbial agents—producing effects that extended far beyond its immediate context.
Rather than a simple improvement in medical practice, this shift initiates a transformation in demographic dynamics. Over the past two centuries, global population growth has followed an accelerated trajectory, approximately doubling every four decades and reaching over eight billion individuals.[6] This exponential increase does not merely expand the number of individuals; it intensifies the density and interdependence of relations through which actions propagate.
At stake is not the attribution of causality to a single event, but a transformation in the structure of causality itself—from proportional and localized effects to systemic and non-linear consequences.[7] Interventions no longer act on isolated objects, but on relations, reconfiguring interactions whose effects exceed both scale and intention and unfold across interconnected systems over time.
Design, accordingly, can no longer be understood as the production of forms acting upon stable conditions. It operates within relational systems whose behavior cannot be fully anticipated or contained. What is transformed is not only causality, but the very field in which spatial practices operate.
5. Urbanization
The transformation in causal structure described above unfolds in parallel with an unprecedented demographic expansion. As populations grow and interactions intensify, relations can no longer be organized through localized or isolated arrangements.
It is within this transformed field that Ildefons Cerdà introduces the term urbanization, not simply to describe the expansion of cities, but to articulate a new object of knowledge adequate to these conditions.[8]Cerdà identifies a gap between urbs—the material structure of the city—and civitas—the social organization of its inhabitants. Urbanization does not resolve this distinction by privileging one over the other; it establishes their relation as the primary field of intervention.
The city can no longer be understood as a collection of objects, nor as a purely social formation, but as a relational system in which spatial configurations and forms of life are co-constitutive. Design, accordingly, no longer operates on discrete elements, but on the organization of relations through which interactions between bodies, infrastructures, institutions, and environments are structured.
What is at stake is not the form of the city, but the organization of the relations through which it is continuously produced.
6. Networked Space
As the scale and density of interactions increase, relations can no longer be sustained through spatial proximity. The emergence of networked infrastructures is not simply a technological development, but a structural response to this intensification. The relational field articulated by urbanization is thereby transformed.
In the urban condition, relations were largely organized through proximity. Networked infrastructures introduce forms of connection that operate across distance and time, independently of territorial continuity.[9] Spatial relations are no longer anchored to a continuous physical substrate, but mediated through distributed systems that reorganize interaction, coordination, and visibility.
Causality becomes increasingly opaque: effects cannot be traced back to a single origin or linear sequence, but emerge from interactions across multiple scales. Spatial organization no longer follows physical adjacency, but the dynamics of distributed systems.
Approaches grounded in proximity, territorial continuity, and object-based intervention do not disappear, but are decentered within a field structured by non-contiguous interactions. Presence is no longer exclusively locational, but relational.
7. Planetary Layers
The networked condition described above extends to a planetary scale. The transformations outlined so far converge into a condition defined by three interrelated factors: a global population exceeding eight billion individuals; infrastructures that connect these populations independently of territorial continuity; and the measurable fact that the total mass of human-made materials has surpassed the Earth’s biomass.[10] Taken together, these conditions mark a threshold: human activity no longer operates as a localized force, but as a planetary one.
At this scale, the relation between intervention and consequence becomes non-commensurable. Actions, however localized, propagate across interconnected systems, producing effects that exceed their site, duration, and initial intention. Causality is not only non-linear and opaque, but cumulative and potentially irreversible.
Irreversibility, however, is not absolute. It is a relative condition, unevenly distributed across domains of stabilization and shaped by the costs required to alter them. Material configurations may appear fixed yet remain comparatively transformable, while institutional and cultural formations stabilize conditions more persistently, constraining what can be altered and how.
Design, therefore, operates within a shared planetary system in which every intervention participates in transformations that are distributed, cumulative, and increasingly difficult to reverse. What is required is not a more accurate description of space, but a mode of intervention capable of engaging these layered conditions and their uneven reversibility. Spatial thinking names this field of operation.
8. Practicing Spatial Thinking
Within these conditions, spatial thinking is best understood as an epistemic field of practice. It designates a domain of action encompassing heterogeneous practices insofar as they intervene in the transformation of relations between the world as it is and the world as it could become.
Design does not operate at the level of form alone, but at the threshold between epistemic and ontological conditions. This threshold includes the position from which observation takes place, which is itself situated within the conditions it engages. It acts on what can be thought, perceived, and made actionable before it stabilizes as form.
Spatial thinking names this field of intervention. It unfolds across different moments of stabilization: some project possible configurations before they stabilize (ex-ante), others engage transformations as they unfold (in-fieri), while others interpret and reconfigure what has already taken form (ex-post).
These are not disciplinary distinctions, but temporal positions of operation that coexist and intersect within the same process.[11]
Spatial thinking does not prescribe a method. It describes how interventions operate across these temporal conditions, engaging processes that remain more or less open to transformation. It can be rendered diagrammatically as a field in which envisioning, sensing, and assessing operate simultaneously—not as separate domains, but as overlapping positions within a continuous field of action.
What this diagram makes visible is not the structure of space, but the conditions under which spatial relations can be acted upon (Fig.1).
Fig. 1. Spatial Thinking: diagrammatic field of epistemic operation across envisioning (ex-ante), sensing (in-fieri), and assessing (ex-post).
9. Acting on Relations
Within these conditions, design does not operate on isolated entities, but on the relations through which entities are constituted, perceived, and transformed. Relations are not secondary connections between pre-existing elements, but the conditions through which elements acquire meaning, function, and agency.
To act on relations is not to rearrange objects, but to intervene in the configurations that organize how bodies, institutions, environments, and systems interact. Objects function not as ends, but as mediators—material or immaterial articulations through which relations are stabilized, contested, or redirected.[12]
Such interventions operate across different moments of stabilization—before, during, and after form takes shape—engaging processes that are only partially controllable and whose effects propagate across interconnected systems. These effects accumulate, interact, and extend across domains, material, institutional and cultural, carrying different costs and degrees of reversibility.
Design, therefore, intervenes in how interactions propagate and accumulate, shaping the trajectories through which conditions stabilize and become more or less difficult to transform over time, including the conditions through which they are perceived and acted upon.
10. Before Irreversibility
Design operates within a threshold between conditions that have already stabilized and those not yet irreversible. This threshold is not a discrete moment, but an ongoing condition shaped by the uneven distribution of stability, cost, and resistance across domains. To act before irreversibility does not mean to intervene earlier in time, but to engage the conditions through which relations remain open to transformation.
“Before irreversibility” therefore does not designate a temporal stage, but a field of action in which interactions have not yet accumulated into configurations whose transformation becomes increasingly constrained.
Design does not operate outside these conditions, but within them, altering the trajectories through which relations emerge, stabilize, and accumulate. Interventions shape not only what is produced, but the conditions under which production becomes possible.
There is no outside to these conditions—only different ways of acting within them.
April 2026 — Version 1.0 DOI: https://doi.org/10.5281/zenodo.19651393
¹ See National Research Council, Learning to Think Spatially (2006); Uttal et al., “The malleability of spatial skills” (2013); Newcombe (2010).
² See The Practice of Spatial Thinking: Differentiation Processes (Actar); for related positions in design theory, see Easterling (2014); Corner (2006).
3 See Herbert A. Simon, The Sciences of the Artificial (1969); Horst W. J. Rittel and Melvin M. Webber, “Dilemmas in a General Theory of Planning” (1973); Donald A. Schön, The Reflective Practitioner (1983).
4 See Vaclav Smil, Growth (2019); see also Erle Ellis, Anthropocene: A Very Short Introduction (Oxford University Press, 2018).
5 See Sherwin B. Nuland, The Doctors’ Plague: Germs, Childbed Fever, and the Strange Story of Ignác Semmelweis (New York: W. W. Norton, 2003).
6 See Massimo Livi-Bacci, A Concise History of World Population (Oxford: Blackwell, 2017).
7 See Donella H. Meadows, Thinking in Systems: A Primer (White River Junction: Chelsea Green, 2008).
8 Ildefons Cerdà, Teoría General de la Urbanización y Aplicación de sus Principios y Doctrinas a la Reforma y Ensanche de Barcelona (Madrid: Imprenta Española, 1867).
9 See Manuel Castells, The Rise of the Network Society (Oxford: Blackwell, 1996).
10 See Tomer Fishman et al., “Global human-made mass exceeds all living biomass,” Nature 588 (2020): 442–444.
11 Henri Lefebvre, The Production of Space (Oxford: Blackwell, 1991 [1974]).
12 See Bruno Latour, Reassembling the Social (Oxford: Oxford University Press, 2005).