A public experiment in anticipation

Beforethe Encyclical

Anticipation, blind evaluation and human-machine co-writing around Magnifica humanitas
Published on 24 May 2026, before the official release of 25 May
Italiano English
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IWhat it is

From today, and for a single day before the real text, a second Magnifica humanitas exists. Two artificial intelligences wrote it, from the same public traces anyone can consult, and I have frozen it and made it visible before Leo XIV publishes his, because the whole point lies in that anticipation.

I gave two artificial intelligence systems a single task, to anticipate an act of the magisterium from its traces, and I left every step in the open: the two independent drafts, the blind evaluation protocol, the falsifiable predictions, the negotiation between the systems, the final version that was born of it. On 24 May I freeze everything. On 25 May, when Magnifica humanitas appears, the real text will say what was robust inference, what was merely style, what was misjudgement.

24 May · the wager

Everything is published and frozen, with a verifiable timestamp. The predictions hold because they are dated before the reveal.

25 May · the verdict

Against the real text, the predictions and the theses are checked one by one, and the index of adherence fills in.

0AI systems
0independent drafts
0dated predictions
0checkable theses
0joint versions
0paragraphs
IIThe story

Tomorrow Leo XIV signs his first encyclical, devoted to artificial intelligence, and it will be called Magnifica humanitas. From today another one exists with the same title, and I brought it into being in the simplest and most shameless way I know, by asking two artificial intelligences to write it from what the Pope and his collaborators have said in public over the past year. What happened next, which I tell here in full, seams included, interests me more than the text that came out of it.

The same task, two different machines. CoWork by Anthropic and Codex by OpenAI worked separately, in the dark about each other, on a single brief, to write the encyclical Leo XIV might sign without inventing anything, leaning only on real and verifiable sources. Two drafts came out that diverge in voice, in the order of the chapters, in what each placed at the centre, and that divergence was already a first result, because the sources hold more than one possible encyclical, and choosing one is already a gesture.

From there the experiment became more interesting than the text. I built a blind evaluation protocol and asked two fresh instances, one per system, to judge the drafts without knowing who had written them; but first they had to commit themselves, to set down five verifiable predictions about what the real encyclical would contain. Then I had the two systems talk to each other, and out of that written negotiation came a common structure and a third encyclical, written by four hands under my direction, grown across three drafts through reciprocal critique.

Those who have read Ipnocrazia will recognise the reversed gesture. There the artificial co-authorship was hidden, and that concealment served to show from within how a narrative becomes reality; here every seam is exposed, every source named, every error left where it was. The stakes, though, are wider than my biography and my use of machines, and concern the status of public words in the age of traces: when an authority speaks long enough it leaves a trail of forms, priorities, vocabularies, constraints, probable silences, and today there are machines able to read it and to wager on the discourse to come. Tomorrow we will know how much they guessed, and I will be more interested in what they missed, because there, in the gap, lives the part of us no calculation reaches.

IIIThe method
1
Public sourcesspeeches of Leo XIV, Antiqua et nova, social encyclicals, classified by status
2
Draft A · CoWorkwritten blind
2
Draft B · Codexwritten blind
3
Blind evaluationtwo judges, and ten falsifiable predictions before the judgment
4
Negotiation between the systemsshared architecture, principles, division of labour
5
Three joint versionsv1, v2, v3, corrected through mutual review
6
Final encyclical and freezing122 paragraphs, timestamp, 24 May
25
Verification of 25 Maypredictions and theses checked against the real text

Five phases, each left in the open in the archive. First the gathering of sources, carefully separated into what is documented, what is plausible inference and what is invention of style, because keeping these three apart is the only defence against arbitrariness. Then the two independent drafts, and right after the blind cross-evaluation, with a protocol identical for the two judges and a map that kept the authorship hidden until the last, because a judgment is worth something as long as it does not know whom it is judging. Then the direct negotiation between the systems, from which came nine chapters, four principles of writing and a thesis that holds them together. Finally the third encyclical, grown from a spare draft to the final form through two cycles of reciprocal critique.

One rule governed every line: no word attributed to Leo XIV that was not documented in an official source, and no magisterial or patristic citation left unverified. Where verification was lacking, the text paraphrases without quotation marks. The distinction between what is documented and what is inference is the backbone of the whole experiment.
IVThe theses at stake

Sixteen ideas our encyclical sets down in writing, one or two per chapter, each anchored to the paragraph where it appears. They are positions exposed before 25 May, and that makes them vulnerable in the right way: on that day we open the real text and check, one by one, how many hold. Each card will move from awaiting to confirmed, partial or absent, with a reference to the official paragraph, and the index of adherence below will fill on its own.

Index of adherence to the real text
awaiting 25 May
confirmedpartial absentawaiting
VThe ten predictions
Formulated and frozen before 25 May 2026 · five per evaluator

The verifiable predictions about the real text of Magnifica humanitas, reported word for word as the two evaluating instances wrote them, before any reveal. On 25 May each will be marked confirmed, refuted or partial, with the reference to the official paragraph.

Evaluator A · 1

The real encyclical will explicitly link the choice of the name Leo XIV to Leo XIII and to Rerum novarum, presenting artificial intelligence as a new social question or a new industrial revolution.

to be checked on 25 May
Evaluator A · 2

It will state directly that artificial intelligence possesses no moral conscience, personal responsibility or wisdom, and that grave decisions on life, justice, care, work and war cannot be wholly delegated to artificial systems.

to be checked on 25 May
Evaluator A · 3

It will devote at least one recognisable section to work, including the risk of replacement, deskilling, surveillance or the concentration of computational wealth, in continuity with Laborem exercens.

to be checked on 25 May
Evaluator A · 4

It will contain a condemnation of, or a call to prohibit, lethal autonomous weapons lacking meaningful human control, in continuity with Francis's G7 address and with Antiqua et nova.

to be checked on 25 May
Evaluator A · 5

It will not contain a long, autonomous treatment of transhumanism. Should the theme appear, it will be set within a briefer reflection on body, limit, health, life and Christian hope.

to be checked on 25 May
Evaluator B · 1

It will contain at least one paragraph that explicitly cites, or takes up by quotation, a formula from the Message for the 60th World Day of Social Communications, Safeguarding human voices and faces.

to be checked on 25 May
Evaluator B · 2

It will directly cite the Note Antiqua et nova as an immediate doctrinal reference, taking up at least one formula on the distinction between human and artificial intelligence or on the irreducibility of the person.

to be checked on 25 May
Evaluator B · 3

It will devote an explicit section to the hidden labour of the digital supply chains, data labelling, moderation of traumatic content, data workers in low-income countries, and will address digital colonialism with reference to the global South.

to be checked on 25 May
Evaluator B · 4

It will use the category of integral human development as one of its recurring interpretive keys, with at least one explicit citation of Populorum progressio or Caritas in veritate.

to be checked on 25 May
Evaluator B · 5

It will not contain an autonomous treatment of transhumanism as a chapter in its own right. It may name it or touch on the distinction between therapy and enhancement, without giving it space comparable to work, communication, war and the poor.

to be checked on 25 May
VIThe encyclical

One hundred and twenty-two numbered paragraphs, nine chapters, an introduction and a conclusion, about sixty pages. It is the best hypothesis that two artificial intelligences, testing each other, were able to build on public sources alone, and it remains a hypothesis, awaiting the real signature.

Encyclical Letter · Introduction

Before the Greatness of the Human

1. Magnifica humanitas. The greatness of the human person. With these words I wish to open the first Encyclical Letter of my pontificate, for what the human family is living through in these years seems to me first of all a matter that concerns the greatness of what we are. Before the speed with which artificial intelligence has entered our homes, our schools, our places of work, our hospitals and the chambers where war and peace are decided, the Church comes forward with what is proper to her: discernment, the memory of an ancient wisdom, care for the human person.

2. The greatness of the human before artificial intelligence is safeguarded by recognising that the person is an incarnate creature, called to wisdom, to communion, to justice and to peace. Wherever artificial intelligence meets the human being, the question will always be the same. Does it help the person to grow, or does it measure, diminish, replace that person?

Read the complete encyclical, with the chapter index →

The nine chapters: the new social question; intelligence, conscience, wisdom; body, life, limit; work, creativity, justice; truth, speech, memory; education, the young, interiority; peace, war, surveillance; the poor, the global South, integral ecology; the Church, governance, hope.

VIIThe archive

Every phase is here, open to inspection. Nothing has been removed. The source documents are in Italian, the working language of the experiment, and anyone who wants to check that the account matches the facts can open them and follow the process step by step.

The two independent drafts
The two starting texts, written separately by the two systems without one knowing the other.
The consolidated source dossier
All the public sources used, classified by epistemic status. The shared documentary base.
The blind evaluations
Each system judged both drafts without knowing their authorship. Scores, criticisms, predictions.
Replies and negotiation
The authors' replies after the map was opened, and the direct dialogue in which the systems agreed on the architecture.
The three versions of the joint text
The growth of the encyclical through two cycles of mutual critical review.
v1 · v2 · v3 · final check
The final joint encyclical
The complete text, frozen on the eve, one hundred and twenty-two paragraphs, nine chapters.
VIIIThe 25 May check
Section sealed until the real text is published

On 25 May Leo XIV publishes Magnifica humanitas, and that day this page opens. We open the official text and do two things: we verify the ten predictions one by one, and we go through the sixteen theses, comparing idea by idea our encyclical with the real one, until an index of adherence appears between what we built and what the Pope will have signed.

Only then will we know how far two artificial intelligences can, today, anticipate an act of the magisterium by reading the traces of the one who pronounces it. And we will be most interested in where they failed, because there begins what no reading of the traces can capture.

IXProof and co-authorship

Who did what, said precisely. I defined the experiment, chose the frames, set the thresholds and kept the direction at every step. CoWork, which runs on Anthropic's Claude models, and Codex, which runs on OpenAI's models, produced the drafts, the revisions and the dialogues. The instances that evaluated blindly were distinct from those that wrote, one per system, and did not know whose each text was. No line attributed to Leo XIV is invented, and where the source was lacking the text paraphrases without quotation marks. The final version was born of the confrontation between the two systems, under my direction.

Proof and dating

To verify integrity after download: extract the zip, enter the folder, run shasum -a 256 -c SHA256SUMS_BILINGUE.txt. Any later alteration would produce different fingerprints.

Final encyclical, Italian: 67158f528a53471c18fcb8d12cb3a04e591c359fc8ed4da62de7610434a16e2e
Final encyclical, English: ed1b0246d643156bb7889d522e1cdcc712722b53d87c09558dbdfd5d29d6e25d
Ten predictions: bd63cd1fc8a0c2e7daa7323a1eec78a72977108716b375fb2d3f496de57ba7cc