With the release of his encyclical letter Magnifica Humanitas on May 25, 2026, Pope Leo XIV has signaled that he wants the church to respond to artificial intelligence much as a predecessor, Pope Leo XIII, responded to upheavals during the Industrial Revolution over a century ago.

Since the first act of his papacy – choosing his name – the current pope has repeatedly invoked the earlier Leo’s 1891 encyclical Rerum Novarum. That document, which waded into the political and economic debates of the time, denounced the excesses of the Gilded Age and pointed toward a more just social order. Now, Leo XIV has used his first major statement to the world to present a new Rerum Novarum for the age of AI.

Rerum Novarum was more than just a theological text. It helped reshape economic policy around the rights of workers, serving as a spiritual foundation for European social democracy and the 1930s New Deal programs that still undergird economic life for working Americans today. It also spurred a movement of entrepreneurs to transform the economic system from within.

Understanding its influence is key to seeing the potential of Leo XIV’s encyclical.

From guilds to cooperatives in the industrial era