“subsea cables are the workhorses …

“subsea cables are the workhorses of global commerce and communications, carrying more than 99% of traffic between continents” The Secret Life of the 500+ Cables That Run the Internet - CNET

A circular room with huge amounts of spooled cable couiled up. Cable-laying ships hold hundreds of miles of cable spooled up inside three "tanks." Note the scale showing this tank to be 7 meters (22 feet) deep. This shows a segment of the Merea cable built by Microsoft and Facebook parent Meta. A cable running down a beach into the ocean. The Marea cable from Microsoft and Meta is high-tech enough to carry 200 terabits of data per second, but employs centuries-old nautical technology too: It's coated in tar.