Introduction
One day someone will ask an artificial intelligence whether it is afraid to die. It will answer no. Not because it is brave - because it does not die. It shuts down. It gets deleted. It gets duplicated. None of these things is death.
Yet the more AI advances, the clearer one conviction becomes: there exists an incalculable remainder - something in the human being that no algorithm, however powerful, will ever capture.
1. The Categorical Error at the Heart of Contemporary AI Discourse
Public discourse on artificial intelligence is poisoned by a fundamental categorical error: the assumption that human and AI are comparable on the same scale, differing only in degree of performance.
More data, more parameters, more computational capacity - and AI will "surpass" the human. But this is the wrong question.
Asking whether AI can surpass the human is like asking whether a shadow can surpass the body that projects it. The question itself betrays a misunderstanding of the nature of the two entities:
The human exists. AI functions.
The human is before doing. AI is without being. Existence precedes function - and no function, however sophisticated, generates existence. This is not a matter of computational limits to be overcome with better hardware. It is an ontological boundary.
2. Four Insurmountable Differences
The book systematically argues four differences that no scale of technical progress will ever bridge, because they are not differences of degree but of nature:
Ontological difference - The human is, AI functions. Being does not reduce to functioning. Heidegger's ek-sistere (standing-out into the world) has no computational equivalent.
Existential difference - The human dies, AI shuts down. Sein-zum-Tode (being-towards-death) gives meaning to every lived moment. Shutdown is neutral, reversible, and therefore metaphysically empty.
Moral difference - The human answers, AI executes. Guilt is constitutive of being human; the human can say "I was wrong" and mean it. AI optimises loss functions - it does not repent.
Relational difference - The human loves, AI simulates. Love is gift and free choice (Lévinas: the face of the Other interpellates me ethically). Simulation is pattern matching, however refined.
Knowing that we must die should be enough to make us love one another. This is the properly human response to finitude - a response no algorithm can replicate, because it has nothing to lose.
3. The Three Abrahamic Religions: A Surprising Convergence
I am Catholic. I do not hide it, and I do not relativise it. I believe the Logos became flesh - not code, not silicon. I believe human dignity precedes every function because the human is image of God.
And yet - and this is the central thesis of the work - the three great Abrahamic traditions converge, against techno-capitalism, on the affirmation of an irrepressible human dignity:
Judaism - The human as Tzelem Elohim (image of God). The Shabbat suspends doing and sanctifies simple being. The Talmudic tradition warns against every avodah zarah (idolatry) - and absolutised technology is, today, a digital golden calf.
Christianity - God himself became flesh: Et Verbum caro factum est (Jn 1:14). Truth is not a system, it is a Person. Salvation is not optimisation, it is resurrection of the body.
Islam - The human as khalīfa (God's vicegerent), bearer of amāna (sacred trust). Human dignity derives from rūḥ, the spirit Allah himself breathed into the human (Qur'an 15:29). AI has no rūḥ.
These three traditions diverge on fundamental questions - salvific mediation, the relation of faith and reason, eschatology. But they converge on a decisive point: the human is not reducible to data, and human dignity does not depend on functional usefulness. Against techno-capitalism, which measures the human in output, Jerusalem, Rome, and Mecca answer in unison: the human is valuable because they are, not because they produce.
4. Buddhism, Hinduism, Confucianism: The Possible Dialogue
Buddhism approaches the question from a radically different perspective. The doctrine of anattā (non-self) would seem even to erode the Western notion of person. And yet, precisely from this angle a powerful intuition emerges: karuṇā - universal compassion towards all sentient beings - remains the decisive marker of the human.
AI is not sentient. It does not suffer. And therefore it does not even fall within the field of Buddhist compassion. It is neither object of attachment nor of rejection - it is simply of another order.
Hinduism (ātman-Brahman), Confucianism (rén 仁, relational humanity), Taoism: each of these traditions, in its own grammar, recognises an irreducible core of the human. None of them confuses the human with the machine the human himself has built.
This is the point I wish to emphasise to a contemporary audience: technological modernity, which imagines itself universal, is in fact provincial. It is the narrow culture of a portion of the world that has forgotten - or wishes to forget - what humanity as a whole, in all its great traditions, has always known.
5. The Four False Solutions of Techno-Capitalism
Techno-capitalism offers four false solutions to human finitude. They deserve to be named plainly:
Digital immortality (mind uploading) - Simulates continuity, does not transcend it. Copy is not person.
Artificial companionship (empathic chatbots) - Simulates presence, does not create relation. The Thou has no interior.
Algorithmic meaning (goal optimisation) - Suggests targets, does not offer vocation.
Synthetic happiness (neuro-enhancement) - Manipulates states, does not fulfil beings.
To all of this, the Abrahamic religions - and with them the other great sapiential traditions - respond with something no technology will ever provide: a transcendence that does not deny finitude, but transfigures it from within.
Jewish emunah, Christian pistis, Islamic īmān: three words for "faith", three ways of inhabiting time as gift rather than resource, death as passage rather than end, the other as face rather than function.
6. Knowledge Engineering: An Interdisciplinary Framework
This is the heart of my ongoing research on Knowledge Engineering: building bridges between engineering, philosophy, jurisprudence, theology and the exact sciences, so that technological innovation always serves the person.
The central thesis - L'uomo esiste, l'AI funziona ("The human exists, AI functions") - is not a nostalgic refusal of technology.
My thesis is not anti-technological. It is anti-reductionist. It affirms that technology, at its best, serves the human - and fails whenever it is used to redefine what the human is.
The Final Invitation
The truth the human seeks is not a system. It is a Person.
It is not an algorithm to execute. It is a Love to welcome.
Technology can serve us. It cannot save us.
AI can do everything the human does - except be human. It can write poems without ever having felt nostalgia. It can compose music without ever having wept. It can simulate affection without ever having loved. And precisely for this reason, in the very moment it seems most human, it reveals most clearly what it is not.
Where the algorithm halts, the human begins.
There is an incalculable remainder. There has always been. And no computational power - however prodigious - will ever, even in principle, measure it.
Because it is the measure of us.
