Question

Traditional debates in the philosophy of cognitive science have long been polarized by the boundary problem of human cognition. On one side, orthodox internalist paradigms restrict cognitive processes strictly to the neural structures residing within the biological brain, arguing that any external tools or symbolic systems are mere environmental inputs that trigger internal processing. Conversely, proponents of the extended mind thesis (EMT) contend that external artifacts—such as physical notebooks, digital memory aids, or even navigation instruments—can literally constitute a functional part of the cognitive system, provided they are seamlessly integrated into an agent's problem-solving routines. For decades, the academic literature has treated these two ontological positions as mutually exclusive. Internalists routinely accuse EMT advocates of committing a "coupling-constitution fallacy"—confusing the causal coupling of an agent with an object for the object's actual constitution of the mind. In return, EMT theorists accuse internalists of maintaining an outdated, Cartesian neurocentric bias that arbitrarily privileges the biological skin as a metaphysical boundary.

However, the persistence of this theoretical stalemate reveals a shared methodological flaw: both camps rely on static, synchronic analyses of cognitive states rather than examining the diachronic evolution of cognitive practices. By focusing exclusively on whether a specific environmental artifact qualifies as definitively "cognitive" at an isolated given moment, scholars in both camps systematically overlook the developmental trajectory of human-artifact interactions. A far more productive theoretical framework would shift the analytic focus away from rigid ontological categorization and toward applied dynamical systems theory. This approach treats human cognition not as a fixed, geographically bounded entity, but rather as a fluid, self-organizing system that temporarily and opportunistically recruits environmental structures based on immediate task demands.

Under this dynamical framework, the boundary of cognition is recognized as inherently transient and task-dependent. For instance, when an agent first learns to perform a complex mathematical operation using an abacus, the initial stages of interaction closely resemble the traditional internalist model—the abacus is clearly an external object being consciously manipulated via sensorimotor commands. Yet, as the specific motor and visual routines become thoroughly automated through practice, the functional boundaries between user and tool dissolve. The abacus transiently becomes a fully constitutive part of the extended cognitive apparatus. Crucially, however, once the specific computational task is completed, this extended system disassembles, returning the agent to a largely internalist baseline. Therefore, the primary objective of modern cognitive science should not be to draw a permanent, absolute line demarcating mind from world. Instead, researchers must work to mathematically map the fluctuating, topological spaces of these temporary cognitive ecosystems. By abandoning the rigid metaphysical commitments that have unnecessarily constrained both internalism and traditional EMT, cognitive scientists can begin to operationalize cognitive extension as a variable, temporal phenomenon rather than an immutable ontological status.

Which of the following most accurately describes the principal objective of the author in the passage?