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The Internet Under the Sea | Throughline
Posted
October 23, 2025
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October 23, 2025
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55:58Now PlayingWhat powers the global internet? The answer might surprise you: not satellites, but hundreds of thin cables that run along the ocean floor. They’re an absolutely essential technology that’s also incredibly fragile — so fragile that in the beginning, most people thought they couldn't possibly work. Today on the show: the story of a man who did think they could work… and the lengths he went to to try and connect the world.
Guests:
Bill Burns, former BBC broadcast engineer and founder of atlantic-cable.com
Cyrus Field IV, great-great-grandson of Cyrus Field
Allison Marsh, professor at the University of South Carolina and historian of technology
Ben Roberts, strategic advisor on Subsea Cable Economics for Connectivity at UNICEF who has been building cable network in Africa for the past two decades
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