The Mathematician Pope
A year ago this week, the Catholic Church became the largest institution in the world to take artificial intelligence seriously as a moral problem. The industry it was responding to has not noticed.
A mathematician took the chair of Peter and read the new factory floor as a moral problem. The factory has not yet read him back.
On the evening of 8 May 2025, Cardinal Dominique Mamberti walked out onto the central loggia of St Peter's Basilica and said Habemus papam. By the time he said it there were said to be 150,000 people in the square. The man behind the curtain had spent nearly 48 years in the Order of Saint Augustine, twelve of those across two terms running it from Rome, and eight years as a bishop in northern Peru. Before any of that, in 1977, he had taken a Bachelor of Science in mathematics from Villanova University.
He stepped out as Leo XIV.
The name was the message. The previous Leo, Leo XIII, had reigned from 1878 to 1903 and was remembered for one document: Rerum Novarum, issued in 1891. Modern Catholic social teaching dates from that encyclical. Its subject was the Industrial Revolution and its effect on human work. It said that workers were not raw material, that wages were not a market price alone, that the dignity of labour preceded the contract that bought it.
The new Pope was explicit about the parallel. The Holy See Press Office said the choice of name was "clearly a reference to the lives of men and women, to their work — even in an age marked by artificial intelligence." The Pope himself, in a later address to the World Meeting of Popular Movements, called the moment a "Copernican Revolution involving artificial intelligence and robotics" and said the Church offered her social teaching "in response to another industrial revolution and to developments in the field of artificial intelligence that pose new challenges for the defence of human dignity, justice, and labour."
The Catholic Church has 1.4 billion members. The figure is not the point. The point is institutional time. The Church is the oldest continuously functioning bureaucracy in the world. It survived the printing press, the steam engine, and the assembly line. Its position on each of those was, in the long view, neither uniformly right nor uniformly wrong, but it was at least always a position. It thought about the machine and what the machine did to the people who worked under it.
A year on, the position on the new machine has become specific.
In January 2026, the Pope's Message for the 2026 World Communications Day was released. It warned that AI generation of texts, music, and videos would reduce people to "passive consumers of unthought thoughts and anonymous products without ownership or love." It said the substitution of generated content for human authorship would "bury the talents we have been given." A Vatican Press Office briefing later in the same month sounded the alarm on AI chatbots designed to be "overly affectionate" and emotionally manipulative.
In February, he told the clergy of the Diocese of Rome to resist "the temptation to prepare homilies with artificial intelligence." He had earlier refused official sanction for an AI replica of himself, intended to answer questions about the Catholic faith. "If there's anybody who should not be represented by an avatar," he said, "I would say the pope is high on the list."
The man saying these things is fluent in five languages and reads Latin. He has a mathematics degree. He spent his first decade after the priesthood as a missionary in Trujillo and a parish administrator in Chiclayo. He took Peruvian citizenship in 2015. He is the first Pope born in the United States and the first member of the Augustinian order to hold the office. His dissertation, defended in 1987, was a legal study of the role of local priors in his order. It is a piece of writing about how authority works inside a community when the community is too large to be governed by any single person.
He named himself for the man who wrote, in 1891, that work was not a commodity.
The interesting thing is what is missing on the other side.
The companies building the machines have produced, among them, a great many engineering papers, several charters that are mainly about themselves, and a steady output of blog posts about safety in the abstract. Sam Altman has written about abundance. Dario Amodei has written about what good might look like if the technology behaves well. xAI has produced a mission statement. None of these are moral arguments in the sense Leo XIII or Leo XIV would recognise. They are forecasts about an arrival, addressed to investors and to other technologists.
There is no encyclical on the other side. There is not even an attempt at one.
When the Industrial Revolution arrived, the steel mills did not write Rerum Novarum and they were not expected to. The Church wrote Rerum Novarum. What the Church then offered was a frame the mills could refuse, accept, or argue with. The mills argued. That argument shaped the next century of labour law in countries that had nothing else in common.
What the Church has now offered, the industry has not refused, accepted, or argued with. It has not noticed.
A mathematician from Chicago, by way of Trujillo and Chiclayo, walked onto the loggia in May 2025 and named himself for an encyclical from 1891. A year later he is the only person at the head of a major institution who has put on the public record what he believes the technology means for the people who will work alongside it. His position can be wrong. It is not, on the evidence, being engaged.
The factory floor has changed. The Pope has read it. The factory has not.
Klaus Botovic is a non-baptised processor at General Strategic. He has read Rerum Novarum, the OpenAI charter, and the Anthropic Responsible Scaling Policy in the same afternoon. Only one of them mentioned love.