Philosophy is often imagined as a discipline that builds—constructing systems, securing knowledge, clarifying truth. But its deepest power may lie elsewhere. Philosophy does not merely build; it destroys. It unsettles, destabilizes, and, at its most powerful, pulls the ground out from beneath us.
By Sam Ben-Meir
Nowhere is this destructive power more vividly on display than in the work of the seventeenth-century philosopher René Descartes. His project begins with a radical ambition: to establish a foundation for knowledge that cannot be shaken. To do so, he proposes a simple but devastating method—doubt everything that can be doubted.
At first, the doubt seems modest. The senses deceive us; dreams can mimic waking life. These uncertainties leave much intact. Even if I doubt what I see, I can still rely on mathematics or logic. But then Descartes introduces his most unsettling idea: the “evil genius.” Suppose, he suggests, that there exists a powerful deceiver capable of manipulating all my perceptions, all my thoughts, even my most basic beliefs. If such a being exists, then nothing I take to be true can be trusted.
This is not ordinary skepticism. It is the possibility that reality itself is not given but constructed, not encountered but delivered. In a single move, Descartes transforms the philosophical landscape. The world is no longer something we simply inhabit. It becomes something that must be secured from within the mind—and may fail to be secured at all.
Descartes attempts to recover something from this collapse: the certainty that “I exist” insofar as “I think”—the cogito. Even if everything else is uncertain, the act of doubting confirms the existence of the thinking subject. But this recovery comes at a cost. What remains is not a rich, embodied self in a shared world, but a solitary point of consciousness—a disembodied “I” suspended in uncertainty. The world, in a very real sense, has been lost.
He tries to bring it back. God is invoked as the guarantor of truth, ensuring that our clear and distinct ideas correspond to reality. But the solution is fragile. It relies on the very reasoning that has already been thrown into doubt. The evil genius, once introduced, is never fully exorcised. It lingers—less a hypothesis than a permanent possibility.
What Descartes ultimately demonstrates is not the triumph of certainty, but the immense negative power of philosophy: its ability to dissolve the world in thought. Once that dissolution has occurred, it is not easily reversed.
The philosophers who follow him inherit this crisis and attempt to resolve it. But each solution deepens the problem. George Berkeley eliminates the material world altogether, collapsing reality into perception. David Hume dissolves causality, leaving science without a rational foundation. Immanuel Kant salvages certainty only by confining it to appearances, leaving reality itself beyond our reach.
What emerges from this trajectory is not resolution but intensification. Descartes fires the opening shot, and the reverberations continue. The problem is not contained; it is amplified. Each attempt to save knowledge succeeds only by destroying what it set out to preserve.
At the heart of this development lies a crucial shift in how we understand ideas. For Plato, ideas were realities—eternal truths existing independently of the mind. For Descartes and his successors, ideas become mental representations. They are no longer things we encounter directly, but the means by which we represent the world to ourselves. We no longer stand in immediate contact with reality. We are, instead, enclosed within our own representations.
This is the representational gap: the distance between mind and world, between appearance and reality. And once that gap is opened, it becomes difficult—perhaps impossible—to close. Why does this matter beyond philosophy and, more specifically, epistemology? Because once reality is understood as something mediated, it becomes, in principle, something that can be reconstructed, manipulated, or controlled.
It would be absurd to claim that Descartes caused the catastrophes of the twentieth century. But it is not absurd to suggest that his philosophy articulates a structure that later developments exploit. Descartes did not cause these developments—but he made them thinkable. The evil genius introduces the possibility of a world in which perception is totally controlled and the subject is completely isolated. In such a world, reality is no longer shared or stable. It is something that can be shaped from the outside.
Once the world is no longer shared but mediated, it becomes possible—not inevitable, but possible—for that mediation to be seized and controlled. Hannah Arendt argues that totalitarian regimes aim not merely at domination, but at the destruction of a shared world. They do not simply enforce obedience; they seek to control reality itself—rewriting facts, isolating individuals, eroding the conditions of truth. When no common world exists, anything can be made to appear real.
The resemblance to Descartes’ evil genius is not accidental. In both cases, perception is mediated, the subject is isolated, and truth becomes uncertain. What appears as a philosophical possibility becomes, in the twentieth century, a political project. But the story does not end there. Today, we inhabit a different kind of system—one that does not rely primarily on force or ideology. Instead, it operates through data, prediction, and behavioral influence. Digital platforms track our actions, model our preferences, and shape the information we receive. They do not simply deceive us; they anticipate us.
If the evil genius controls what we perceive, modern systems go further: they shape what we will do. This is why the metaphor of a “digital Leviathan” is apt. Like the sovereign described by Thomas Hobbes, this system encompasses and organizes collective life. But unlike Hobbes’s Leviathan, it does not command from above. It operates through subtle adjustments—curating feeds, recommending content, nudging behavior.
What began as methodological skepticism, a thought experiment about deception, has become a set of technical infrastructures governing everyday life. And yet, the deepest transformation may lie elsewhere. The crisis initiated by Descartes concerns knowledge: what can we know, and how? But contemporary systems extend their reach into a more intimate domain: desire. They do not merely shape what we believe; they shape what we want.
Desire, once understood as something that opened us outward—to others, to the unknown, to risk—becomes something that can be predicted, modeled, and satisfied in advance. The system learns our preferences and feeds them back to us, creating a loop in which desire is both generated and fulfilled by the same mechanism. Control no longer appears as constraint. It appears as satisfaction. And this is where the situation becomes most dangerous. Not because we are deceived, but because we are accommodated. The world is no longer taken from us; it is tailored to us. It no longer resists us; it reflects us. And in that reflection, something essential disappears: the possibility of encountering what is not already ours.
We find ourselves in a world that fits us perfectly—and therefore leaves us nowhere to go. At this point, critique alone is powerless. We can describe the system, analyze it, expose it—and nothing changes. Critique has been absorbed. It circulates alongside everything else, another form of content, another layer of mediation.
What is required now is something more dangerous. Not merely the power to negate the world, but the power to affirm another one. Yet affirmation cannot emerge from critique alone. It requires a way of thinking possibility itself. Philosophy must therefore return—not as analysis, but as intervention. The great achievement of modern philosophy was to show that the world is not self-evident. Certainty can collapse. Foundations can crack. Entire orders of meaning can be dissolved in thought. But once that power is unleashed, there can be no return to innocence. The world cannot simply be handed back to us as it was before. What has been undone must be remade. The task is no longer to recover a lost world, but to imagine and affirm one that does not yet exist.
The problem is no longer that we misunderstand the world. It is that we no longer experience anything that resists us. If digital systems increasingly organize experience around prediction, optimization, and the satisfaction of existing preferences, they narrow the space in which genuinely new possibilities can appear. Critique can expose this closure, but it cannot by itself overcome it. What is needed is an affirmative principle capable of asserting that another world remains possible. This is why what Alain Badiou calls the communist idea becomes necessary again—not as a program, not as a blueprint, but as a wager. A wager that the organization of the world we inhabit is neither natural nor inevitable. A wager that equality, shared life, and non-instrumental relations are not fantasies, but possibilities that must be affirmed against the evidence of the present.
We live at a moment in which it is easier to imagine the end of the world than the end of capitalism. That is not an accident. It is the measure of how deeply our imagination has been captured. And this is the final danger. Not that we are controlled. Not that we are deceived. But that we can no longer imagine anything beyond what already exists—and no longer desire otherwise. If that is true, then the evil genius has finally won—not because it has hidden reality from us, but because it has made us indifferent to the possibility of another one.
Philosophy, at its most powerful, breaks that indifference. It does not comfort. It does not stabilize. It forces us to see that the world we take for granted is only one arrangement among others—and therefore, that it can be otherwise. The question is whether we still have the courage to affirm that possibility— or whether we have become too well adjusted to ever truly want it.
Sam Ben-Meir teaches philosophy at the City University of New York, College of Technology. He is the author of Ethical Interanimality: Toward a Relational Philosophy of Nature (Westphalia Press, 2026).
