Review: Yuval Noah Harari’s Nexus: A Brief History of Information Networks from the Stone Age to AI (2024)

Yuval Noah Harari’s Nexus is an alarming exploration of how information networks have shaped human societies. Harari’s central argument is that new technologies give rise to new publics, each with unique realities. This idea underscores the transformative power of information dissemination, which can redefine social structures and individual perceptions.

Harari uses the historical phenomenon of witchcraft as an inducing example to illustrate the power of information dissemination. He discusses how the publication of texts on witch hunting, such as the infamous Malleus Maleficarum (1486), played a pivotal role in spreading and legitimising witch hunts across Europe. This example reminds us how information, when disseminated widely and authoritatively, can shape societal norms and incite widespread action, often with devastating consequences.

Yuval Noah Harari: ‘“Alien intelligence”, as he calls it, could trigger catastrophes we can’t even imagine.’ Photograph: David Vintiner

Harari’s narrative is both alarming and insightful. He offers valuable insights while warning about the potential dangers artificial intelligence poses, a concern that should be at the forefront of our minds. Harari draws parallels between the rise of the state and its bureaucracy, emphasising that while bureaucracy has historically served humanity, it could become authoritarian if AI systems start making autonomous decisions that may not favour all human groups. Harari’s cautionary tale warns that if AI becomes institutionalised within governments, it may lead to scenarios where decisions are made without human oversight, potentially marginalising certain groups and exacerbating existing inequalities or even exterminating certain groups.

Despite these concerns, Harari remains optimistic about the self-correcting mechanisms inherent in democratic systems. He suggests that democracies, with their capacity for learning from mistakes and adapting to new circumstances, might be better equipped to navigate the challenges posed by AI than inflexible totalitarian regimes. In his view, democracies’ ability to foster open dialogue and encourage diverse perspectives can serve as a powerful counterbalance to the centralisation of information and power that AI might bring, instilling hope for a balanced future and the potential for positive change.

Populist Humanities

Harari’s methodological approach in Nexus is characterised by its sweeping scope and generalist perspective, which some critics might view as both a strength and a weakness. His narrative spans vast historical periods, from the Stone Age to the present day, offering readers a panoramic view of how information networks have evolved over millennia. This ambitious undertaking allows Harari to draw connections between seemingly disparate events and trends, highlighting recurring patterns in human history.

However, this broad approach also carries certain risks. By covering such an extensive timeline, Harari inevitably makes generalisations that could be seen as overly simplistic or reductive. Critics might argue that writing a comprehensive history of information networks across such diverse epochs is impossible without resorting to essentialist narratives that gloss over important nuances. Yet, Harari’s work is less about providing an exhaustive historical account and more about sparking intellectual curiosity and debate.

In this regard, Nexus can be seen as a form of “speculative historical fiction”, a genre that allows Harari to explore complex ideas imaginatively and engagingly. While some may question whether this approach constitutes “real” history, Harari’s intent is not to deceive but to provoke thought and encourage readers to consider alternative perspectives on well-trodden historical narratives.

Despite its speculative nature, Harari’s work remains idea-rich and current, offering fresh insights into the interplay between technology and society. His ability to render complex historical concepts in a popular format makes these ideas accessible to a broad audience in an era marked by populism and misinformation; Harari’s approach could be seen as a form of intellectual populism, but it seeks to elevate public discourse by engaging readers in meaningful dialogue about pressing global issues.

Passivity and AI

In Nexus, Harari explores the profound impact that artificial intelligence could have on humanity’s future, presenting a narrative oscillating between caution, alarm and hysteria. While I found his portrayal of AI’s potential influence somewhat exaggerated, Harari taps into a critical discourse surrounding the technological transformations of our time. He situates his discussion in the context of current global challenges marked by technological monopolies, authoritarian tendencies, and existential crises.

The danger of passivity if decisions are removed by AI

We could contrast the present AI era with the optimistic period following the fall of the Berlin Wall, characterised by hopes for free information flows, democratic empowerment, and the rise of empowered minorities. During that time, the internet was seen as a tool for liberation and democratisation. However, as Harari points out, this initial optimism has given way to information overload and the centralisation of power in the hands of a few tech giants. The proliferation of information does not necessarily lead to greater truth or understanding. Again, he illustrates this point with the historical example of witch hunts, where more information did not equate to better decision-making or truth about hunting witches!

Harari speculates that AI could make a passive populace susceptible to manipulation and control. Harari warns that AI’s ability to process vast amounts of data and make autonomous decisions uniquely threatens individual autonomy and democratic governance. He argues that if societies become overly reliant on AI for decision-making, individuals risk becoming passive recipients of information and directives rather than active participants in their governance.

After reading the book, I am struck by the importance of a proper humanities education in countering the potential passivity that AI might induce. Teaching students critical thinking skills encourages them to question the origin and validity of the information they consume. By fostering a culture of scepticism and inquiry, societies can better equip individuals to navigate the complexities of an AI-driven world.

The importance of critical thinking in education

Individuals must remain vigilant and critical of AI technologies to prevent the dystopian future he outlines. Active engagement and resistance against passive acceptance are antidotes to conformity—whether imposed by human or digital tyrants. Positioning education as a crucial tool in safeguarding democratic values ensures that technological advancements serve humanity’s best interests rather than undermining them.

While Harari’s depiction of AI’s potential impact may seem monumental or even hysterical at times, it is an important reminder of the need for critical engagement with technology. By highlighting the dangers and opportunities that AI presents, “Nexus” encourages readers to reflect on their role in shaping a future where technology enhances rather than diminishes human agency.

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