In an interview with El País, Japanese anatomist and public intellectual Takeshi Yoro offers a sweeping and unsettling diagnosis of the modern world: humanity is not suffering from a lack of information, but from an inability to process it. At 88, after decades spent performing autopsies at the University of Tokyo and later studying the relationship between brain, body, and perception, Yoro argues that human beings are trapped behind what he calls an “invisible wall” made of prejudice, cognitive bias, and self-assurance. This barrier, he claims, is not moral but neurological, and it prevents contradictory information from ever becoming meaningful thought.
Yoro’s ideas, first laid out in his bestselling book The Wall of Ignorance, which sold millions of copies in Japan and is now being published in Spain by Debate, have made him an unusual public figure: part scientist, part philosopher, and part cultural commentator. In his view, the human brain behaves like a computer system in which input does not guarantee output. Information may enter, but it is often neutralized, ignored, or rendered irrelevant by internal assumptions. “The coefficient multiplies everything by zero,” he says, describing political and social systems that absorb data but produce no change in behavior. The result, he suggests, is a world saturated with knowledge but devoid of understanding.
For Yoro, this failure of processing is visible everywhere, from international diplomacy to everyday life. He cites stalled negotiations between the United States and Iran as an example of political rigidity, where information flows freely but decisions remain unchanged. Leaders, he argues, do not lack data; they lack openness to transformation. “The input arrives, but there is no output,” he says. “They do not listen.” His diagnosis extends beyond politics into the structure of modern society itself, which he sees as increasingly systematized and therefore resistant to human autonomy.
El País reports that Yoro’s thinking has also become unexpectedly relevant in discussions around artificial intelligence. Asked whether AI brings his theory closer to reality, he rejects the idea that machines are becoming more human. Instead, he argues the opposite: humans have become more machine-like. In his framework, both are converging systems of input and output, and the distinction between biological and artificial intelligence is becoming less meaningful. Yet he resists the notion that this convergence is either progress or decline. “There are already 8 billion intelligent beings on Earth,” he says. “Why are we trying to create another?”
Despite his theoretical skepticism, Yoro himself has been partially absorbed into the technological systems he critiques. At the Osaka World Expo, a digital double known as Professor Yoro AI was created using more than 200 of his published works. He compares the experience to having written another book, noting that the digital version reflects earlier versions of his thinking rather than his current views. The project, he suggests, says more about those who built the system than about him.
A central theme in Yoro’s philosophy is the distinction between information and truth. Information, he argues, is static and time-bound, like a photograph capturing a single frozen moment. Truth, historically understood as something immutable, has been confused with information in the digital age. Yet he turns this idea on its head: if information itself never changes, then all information is, in a sense, true. What has changed, he says, is not reality but human interpretation of it, where change itself has become the dominant value.
Yoro’s reflections extend to Japanese society, particularly its relationship with technology. Unlike many in the West who view robots with suspicion, he explains that Japanese culture does not draw a sharp boundary between the animate and inanimate. Influenced by Shinto traditions in which natural and artificial objects can share spiritual presence, robots are not perceived as threats but as another form of existence. “A robot is simply another presence in the world,” he tells El País. This cultural framing, he suggests, explains Japan’s relative comfort with automation and artificial intelligence.
Yet his critique of modernity is not limited to technology. Yoro describes contemporary society as increasingly governed by systems that absorb individual freedom while presenting themselves as neutral structures. Even healthcare, he notes, operates as an all-encompassing system that enrolls individuals without explicit consent. He illustrates this with his own experience receiving cancer treatment in Japan’s public healthcare system, where costs are automatically covered through insurance. While acknowledging its benefits, he warns that such systems quietly erode small but meaningful forms of autonomy.
For Yoro, this systematic expansion is not new but part of a broader trajectory of modern life. Universities, hospitals, and even intellectual inquiry itself have become more rigid, leaving less room for imagination. He recalls earlier academic environments where expeditions and unconventional research were possible, contrasting them with today’s more controlled institutional frameworks. The loss, he suggests, is not only administrative but imaginative.
Despite his critique of systems, Yoro does not present himself as a pessimist. Speaking to El País, he rejects the idea that humanity is moving toward collapse or an “end times” scenario. Instead, he maintains a quiet optimism rooted in acceptance of human limitation. His goal, he says, is not to change people’s minds but to encourage independent thought. He refuses the role of moral messenger or ideological guide. “I have no message,” he states. “I only want each person to think for themselves.”
Even in his personal contradictions, Yoro remains consistent with his theory. A longtime smoker who once denied the link between tobacco and lung cancer, he was later diagnosed with the disease he had dismissed. Critics have pointed to this as evidence of his own cognitive blind spots. Yet for Yoro, such contradictions are not exceptions but illustrations of the very wall he describes: the human tendency to reject information that disrupts internal coherence.
As artificial intelligence advances and global systems grow more complex, Yoro’s reflections acquire new urgency. Whether in geopolitics, technology, or daily life, his central claim remains unchanged: humanity is not failing because it lacks information, but because it cannot hear what it already knows.
