Book Title: The Web Beneath the Waves: The Fragile Cables that Connect our World
Author: Samanth Subramanian
Publisher: Context
Number of Pages: 324
ISBN: 9379852541
Date Published: Jul. 30, 2026
Book Review
We rarely think about the hidden infrastructure that makes a simple email possible. Yet beneath the oceans lies a vast network of fibre-optic cables carrying an estimated 95% of the world’s data. First imagined in the 19th century, these cables have become essential to modern communication while remaining surprisingly vulnerable.
In “The Web Beneath the Waves: The Fragile Cables that Connect our World“, Journalist Samanth Subramanian highlights this hidden fragility through incidents such as the 2022 volcanic eruption in Tonga, which damaged an undersea cable and left communities without vital communication services.
The undersea cables, primarily made of glass tubes encased in multiple layers, are not only susceptible to natural disasters but are also affected by geopolitical tensions; for example, U.S. policies restrict direct connections with China. The limited number of specialised ships capable of repairs adds to the vulnerability, as repairs can take significant time. Moreover, the dominance of a few tech giants raises privacy concerns, as governments have been known to surveil these cables.
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While alternatives like satellite communication are being considered, they lag significantly in data transfer speeds compared to fibre optics. The book emphasises the importance of these cables as foundational elements of our digital economy, linking economic integration with geopolitical power.
Samanth Subramanian’s book combines deep reportage with engaging narratives, shedding light on the intricacies of global information infrastructure and the potential for future challenges, calling for innovative solutions to ensure security and accessibility in an increasingly interconnected world.
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