Starcast Join the waitlist
Throughline

Throughline

The Internet Under the Sea

Oct 23, 2025 · 51m

Coming soon to iPhone. Already have it? “Listen in Starcast” takes you straight there.

On this episode

About this episode

What 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…