The Internet Under the Sea

What It Covers

The history of the first transatlantic telegraph cable, following Cyrus Field's decade-long effort from 1854-1866 to connect continents through undersea cables, establishing infrastructure that still powers modern internet communications across oceans today.

Key Questions Answered

• •Infrastructure invisibility: Nearly all intercontinental internet traffic travels through undersea fiber optic cables wrapping Earth 36 times, not satellites. These cables break 2-4 times weekly from ship anchors, fishing equipment, or sabotage, disrupting millions of users when severed in critical routes.
• •Historical persistence model: Cyrus Field invested equivalent of $10 million personal fortune and made 50+ Atlantic crossings over 12 years despite three catastrophic failures before succeeding. His approach: secure government backing, recruit technical experts despite lacking expertise himself, and continuously re-raise capital after setbacks.
• •Cable route continuity: Modern undersea cable routes follow identical paths established in 1902, demonstrating how early infrastructure decisions create century-long dependencies. The 1866 transatlantic cable reduced message delivery from two weeks by ship to under 16 hours, charging $100 gold per 20-word message.
• •Geopolitical vulnerability: Recent cable cuts in Red Sea (2024), Baltic Sea, and Taiwan demonstrate fragility of global communications. Single incidents like the Ruby Mar cargo ship severing three cables simultaneously disrupted 75% of Europe-Asia internet traffic, affecting millions across Kenya, Uganda, Vietnam, and Singapore within minutes.