A word for something that does not exist. For Gwendolin Kirchhoff computronium is the key concept for diagnosing the transhumanist fantasy of total calculability as ontological impoverishment. Computronium is hypothetical matter in which every single atom is optimally configured as a logic gate — the densest possible computational substrate that physics permits. Norman Margolus, physicist at MIT, introduced the term in the 1990s as a thought experiment: a mathematical limit consideration, no blueprint. What happens if you imagine matter could do nothing other than compute? Margolus investigated what the theoretical limits would be (cf. Margolus, 1999). It remained a thought experiment. Then came Ray Kurzweil.
In The Singularity Is Near (2005) and The Singularity Is Nearer (2024) the thought experiment becomes a forecast. One litre of computronium, on the claim, would surpass the computational capacity of all human brains combined. In the so-called Sixth Epoch, after the singularity of 2045, all available matter of the solar system is to be converted into computational substrate. Planets dismantled, moons exploited, asteroids melted down: all computation. If you ask why this concept is worth a philosophical framing: not because of its technical substance, which is null, but because of the structure it reveals.
#The transformation that is none
What Kurzweil describes has the form of a transubstantiation. In Catholic doctrine bread is transformed in essence into the body of Christ while remaining outwardly bread. Kurzweil’s computronium reverses the direction: matter is to be transformed in essence into intelligence while remaining outwardly matter, only restructured. The accidents change; a new substance is to arise.
The difference from transubstantiation is decisive. The transformation of bread and wine was an article of faith. No one claimed it could be reproduced in the laboratory. Kurzweil, by contrast, claims his transformation is engineering, physically realisable, scheduled for 2045, only a question of computing power. There is no prototype. There is no roadmap. There is not a single atom that has ever been configured as a logic gate. What appears as technical vision is an article of faith that refuses to name itself as such.
If you look at the parallel closely, another difference becomes visible: transubstantiation was a mystery. It demanded faith, not proofs. The technical transubstantiation claim, by contrast, demands both at once: it presents itself as science but functions only as faith. This double game is the mark of the entire singularity movement.
#A thought experiment becomes prophecy
The shift from Margolus to Kurzweil reveals a mechanism that reaches far beyond a single concept. A physicist poses a what-if question. A futurist turns it into a when question. Mathematical possibility becomes scheduled certainty. As if someone derived from the theoretical conceivability of a wormhole a flight schedule for interstellar travel by 2060.
What enables this leap is not stupidity. Kurzweil is obviously educated. What enables it is a need stronger than any empiricism. Lewis Mumford formulated the decisive observation in The Myth of the Machine (1967): the human being did not first build machines and then begin to think of themselves as a machine. The idea came first. The mega-machine — an organisational principle that turns human beings into functional parts — was the oldest machine, and it consisted of human beings. Computronium is the most radical extension of this principle: not only the human being is to become functional part, but all matter.
Whoever knows Mumford’s diagnosis recognises in computronium not a technical project but a mythological one. The machine is elevated from tool to ontological basic category. Everything that is should, in the last step, be computation. That is no engineering vision. That is metaphysics disguising itself as engineering vision.
#The hostility to nature at the core
Behind computronium hides an attitude older than any computer. In many religious traditions the material world is fallen, corrupted, a prison for the soul. Salvation means: leaving it. In Kurzweil’s vision matter is dumb, unoptimised, wasteful. Progress means: transforming it. Both frames treat nature as something that must be overcome. Neither can grasp nature as already complete, already alive.
Gwendolin Kirchhoff has diagnosed technological perfectionism as expression of a deep hostility toward life: the body is mortal, full of defects, nature inadequate. This attitude drives the wish to replace the organic by the technical, not as progress but as symptom (cf. Kirchhoff, The Great Reset als Technische Welterlösung?, 2022). Jochen Kirchhoff coined the formula: transhumanism is the attempt to push back human life into the inorganic and to fetter and bind it there (cf. Kirchhoff, Schelling: Genie der Naturphilosophie, 2021). Computronium is the end-stage of this pushing back: not only the human being, but all matter is to be transferred into the inorganic.
What presents itself as bold future vision is in truth a regression. If you survey the history of the philosophy of technology, from Descartes’ animal-as-automaton to Kurzweil’s cosmos-as-computer, a constant pattern shows itself: every epoch projects its leading machine onto reality and then confuses the projection with a discovery.
#The theosphere in the engine room
Why does someone making such claims not lose all credibility? Because the need they serve is real. The human being needs transcendence — the feeling that something greater exists, reaching beyond death. This is no weakness. It is an anthropological constant. When the theosphere empties, when churches, rituals, cosmology lose their binding force, the need does not disappear. It migrates. And it finds a new carrier: technology. The technosphere does not arise because someone declares technology to be God, but because fear of death, longing for transcendence, demand for order are real and really seek an object.
Computronium is the end-product of this migration. All matter becomes useful matter obedient to the creator. In the Revelation of John it reads: a new heaven and a new earth. With Kurzweil it reads: a new solar system, optimised for computation. The structure is identical. The content is fiction.
Schelling wrote in 1797 in Ideas for a Philosophy of Nature: nature should be the visible spirit, the spirit the invisible nature. Whoever takes this thought seriously stands before a different reality than the one computronium promises. Matter does not need to be transformed because it is already alive. The cosmos does not need to be converted into computational substrate because it already contains consciousness — not as product of its components but as the ground in which they appear.
Deepening references: computationalism, Promethean impulse and pathogenesis-not-progress.