Introduction: the paradox of abundance
In 2026, a teenager with a smartphone can access more knowledge in three seconds than the legendary Library of Alexandria ever contained. They wield a power that history's greatest scholars could only dream of. Yet it has never been harder to distinguish truth from falsehood, expertise from imposture, knowledge from opinion.
This paradox is not new. With each revolution in the transmission of knowledge, humanity has gained in power what it risked losing in discernment. The printing press democratized the book, but also the defamatory pamphlets. The Internet has liberated information, but also disinformation. Today, Artificial Intelligence promises to synthesize all human knowledge, but at what cost?
To understand the current challenges, we need to look at how far we have come. Because behind every innovation lies a fundamental tension: how can we share more, faster, further, without losing what makes the very value of knowledge, its reliability?
1. The materialization of thought: winning against oblivion
Writing: freezing time
Around the fire, in the caves of Lascaux or the Neolithic camps, knowledge was a fragile flame. The elders orally transmitted hunting techniques, the properties of medicinal plants, and the founding legends of the tribe. But this transmission had an Achilles heel: it would die with the one who carried it. A wise man swept away by disease, a tribe decimated by war, and centuries of accumulated knowledge were gone forever.
The first revolution was writing, which appeared around 3300 BC. in Mesopotamia. These first cuneiform signs carved into clay were not literature, they were accounting records, inventories of grain and livestock. But their significance far exceeded their initial purpose: for the first time, human thought could outlive its author. Humanity was entering History, in the literal sense of the word.
Yet this gain was accompanied by an often overlooked loss. The oral tradition was alive, adaptable, contextual. The storyteller adjusted his story to his audience, answered questions, transmitted nuances impossible to freeze on papyrus. The written word, on the other hand, was frozen, decontextualized, vulnerable to misunderstandings. Plato himself was suspicious of it: in the Phaedrus, he has Socrates say that writing will give men "the appearance of wisdom, and not true wisdom".
School: institutionalizing transmission
Then came school, institutionalizing what had until then been family or clan-based transmission. From Greek academies to Arab madrasas, from medieval monasteries to European universities, humanity has created places dedicated to the preservation and transmission of knowledge.
But here again, a price had to be paid. Knowledge became the prerogative of an elite. Knowing how to read and write was a rare privilege, jealously guarded by clerics and aristocrats. The manuscripts, copied by hand by monks in scriptoria, were precious objects, often chained to library desks to prevent theft.
The printing press: the first democratic earthquake
The real catalyst was the printing press of Gutenberg, around 1450. Before it, producing a book required months of work by a skilled copyist. After it, hundreds of copies could be printed in a few weeks. The cost of the book collapsed. In a century, the number of books in circulation in Europe rose from a few tens of thousands to several million.
This revolution broke the clergy's monopoly on knowledge. Martin Luther was able to spread his theses throughout Europe in a few weeks, something that was unthinkable a generation earlier. The ideas of the Enlightenment circulated from salon to salon, from library to library. Literacy progressed, slowly but inexorably.
But the printing press also democratized error, lies, and propaganda. Hateful pamphlets, fake news, fanciful theories found the same vehicle as scientific treatises. The Reformation and the Counter-Reformation, the Wars of Religion, were also wars of print.
Knowledge silos: what gets lost along the way
Despite these advances, the flow of knowledge remained hampered by considerable obstacles.
Geographical silos have caused humanity to lose centuries of progress. Perhaps the most striking example is that of the Antikythera Machine, the astoundingly sophisticated Greek astronomical mechanism discovered in a shipwreck off the coast of Crete. Built in the second century BC, it was not equalled in complexity until the fourteenth century AD, 1500 years later. The knowledge necessary to make it had simply disappeared, for lack of transmission.
Similarly, the theorem we attribute to Pythagoras was known to Babylonian mathematicians a thousand years before him, and independently rediscovered in China and India. How many discoveries have been made, lost, and remade, by brilliant minds ignorant of the work of their distant predecessors?
Language and political barriers also played a role. For centuries, Arabic scientific knowledge, algebra, medicine, astronomy, remained largely unknown in Western Europe, until the translators of Toledo undertook to make it accessible in Latin. Geopolitical tensions, wars, intellectual embargoes created borders impervious to knowledge.
The Republic of Letters, in the Age of Enlightenment, tried to overcome these obstacles. For the first time, scientists from all over Europe, and beyond, corresponded actively, exchanging observations, experiences, and criticisms. Voltaire wrote to Frederick II of Prussia, Leibniz to the Academy of Sciences in Paris, Franklin to his European counterparts. This first "web" of shared knowledge foreshadowed, on an artisanal scale, what the Internet would accomplish two centuries later.
2. The global village: the dizzying acceleration
The Internet: abolishing distance
The last thirty years have marked an unprecedented acceleration in the history of human knowledge. The arrival of the Internet has abolished distances. What once required weeks of postal correspondence, or perilous journeys, is now accomplished in milliseconds.
Admittedly, a persistent digital divide still leaves about a third of humanity behind this revolution. But for the majority, access to the sum of human knowledge has become almost instantaneous and often free. A student in Lagos or Lima can consult the same scientific articles as a researcher in Stanford or Oxford.
Wikipedia: the improbable encyclopedia
Initiatives such as Wikipedia have embodied this utopia of universal, collaborative, accessible knowledge. Launched in 2001, the online encyclopedia now has more than 60 million articles in more than 300 languages. It has become, for billions of users, the first reflex when faced with a question.
His model is revolutionary: anyone can contribute, but each contribution is subject to the community's review, to sourcing rules, to an imperfect but real verification process. It is an unprecedented compromise between openness and rigor, between democratization and quality control.
Knowledge is no longer the prerogative of the powerful. A passionate self-taught person can learn, for free, skills that would once have required years of expensive study.
The long tail: niche knowledge
The economist Chris Anderson theorized this phenomenon under the name of the "long tail". Where the physical printing press imposed mass profitability, i.e. only books that could sell thousands of copies deserved to be published, digital technology makes it possible to publish and share niche knowledge for micro-communities.
A medieval typography enthusiast, a lover of local railway history, a researcher working on a disappearing dialect, all now find their audience, however small it may be. Knowledge that would have once disappeared for lack of a sufficient "market" can now survive and be transmitted.
Collective intelligence: everyone as broacaster
The Internet has transformed the relationship to knowledge in another fundamental way: we are no longer just passive receivers, but potential transmitters. Whether it's for popularizing science on YouTube, DIY tutorials on specialized forums, or pop culture analyses on blogs, everyone can contribute to the collective edifice.
This "global village", to use Marshall McLuhan's expression, has allowed the emergence of new forms of collaboration. The development of free software, citizen science projects, participatory journalism, so many manifestations of this decentralized collective intelligence.
3. Infobesity: when abundance becomes the problem
But this abundance has created a new problem, which we initially underestimated: infobesity.
A few figures are dizzying. Every day, humanity produces about 2.5 quintillion bytes of data. Every minute, 500 hours of video are uploaded to YouTube, 6 million messages are exchanged on WhatsApp, and thousands of scientific articles are published. Global data production doubles every two years.
Faced with this deluge, the human mind is overwhelmed. We have solved the problem of access, but we have created the problem of sorting. How can we distinguish, in this mass, relevant information from noise, expertise from amateurism, fact from opinion? Search engines provide us with millions of results, but prioritization remains our responsibility and it is becoming an increasingly impossible task.
It is in this context that the promise of Artificial Intelligence emerges. Trained on the almost entire corpus of the web, i.e. billions of pages, articles, digitized books, it promises to be the ultimate synthesizer, capable of processing a volume of information that no human brain, no team of documentalists, could apprehend. It abolishes language barriers, simplifies complexity, compresses the time it takes to access knowledge. It offers the perspective of a universal, personalized, patient tutor available at all hours. By cross-referencing millions of publications, it can even help researchers connect points invisible to the human mind, as shown by AlphaFold by predicting the structure of proteins that biology has struggled to elucidate for decades.
The promise is immense. But every promise has a downside.
To be continued...
In the second part, we will play devil's advocate. Because if AI can become the most powerful vector of knowledge that humanity has ever designed, it could also become its most formidable falsifier. Hallucinations, collapse of models, industrialized propaganda, concentration of power, the shadows of the machine deserve to be looked at in the face.
Part II→ "AI: Best Ally or Worst Enemy of Knowledge?"