Magnifica Humanitas: How the Pope walked into the room full of AI engineers and said what few else dared to say.

Source: Dev.to

Background

On the morning of May 25, 2026, Pope Leo XIV entered the Vatican’s Synod Hall, a room filled with cardinals, diplomats, and leading figures from the AI industry. He personally presented his first encyclical, a historic first: a pope attending the launch of his own document.

The encyclical, titled Magnifica Humanitas (“Magnificent Humanity”), is addressed not only to Catholics but to “every person of goodwill.” It was signed on May 15, exactly 135 years after Rerum Novarum (1891), the landmark encyclical of Leo XIII that responded to the dehumanizing effects of the Industrial Revolution.

The Encyclical

Written originally in English, the opening words set a clear tone:

“Humanity, created by God in all its grandeur, is today facing a pivotal choice, either to construct a new Tower of Babel or to build the city in which God and humanity dwell together.”

Leo XIV argues that technology is not our enemy—AI is neither “a force antagonistic to humanity” nor “inherently evil.” However, technology is never neutral; it reflects the values of those who design, finance, regulate, and use it. The central question, therefore, is not whether AI is good or bad in the abstract, but what vision of the human person is embedded in the data, models, and decisions made today, often by a small group of actors at extraordinary speed.

Key Messages

• A “more moral AI” is insufficient if morality is defined by only a few.
• Active political and social involvement is needed to “slow things down when everything is accelerating,” not to halt progress but to ensure communities can participate, ask questions, and shape the future built in their name.

Reactions

Christopher Olah, co‑founder of Anthropic and a self‑described non‑believer, was present in the hall. After the presentation he thanked the Church for “taking this work of discernment seriously” and issued his own call:

“We need moral voices that the incentives cannot bend.”

Implications for AI Development

For anyone building software, developing AI systems, or making daily optimization decisions, Magnifica Humanitas serves as a reminder that every technical choice carries moral weight. The human being on the other end of a product is not merely a user metric; in the Catholic tradition, each person is made in the image of God—unique and irreducible to simple data.

The Church’s two‑millennium reflection on human dignity predates algorithms, chips, and code. This continuity underscores that no amount of efficiency justifies eroding what makes us human—a perspective AI development urgently needs.

Sources

• Full text of the encyclical:
• Vatican News:
• NPR:
• EWTN:
• Translockit: