December 30, 2025
Cloud? Undersea spaghetti
The Legacy of Undersea Cables
The internet isn’t in the sky — it’s giant ocean wires, and commenters are obsessed
TLDR: Most internet traffic travels through undersea cables, not satellites, and today’s fiber routes echo imperial-era telegraph lines. Commenters turned the thread into a link battle and a shopping quest, with one user hunting a cable cross‑section, while others pushed must‑watch docs and “mandatory” Wired reading — because control of these cables still matters.
Forget satellites: 97% of the internet rides through undersea cables, snaking a mind-bending 1.2 million km — enough to wrap Earth 30 times. Jasmin Taylor’s history dive says our “Cloud” is really a web of ocean wires, built on old telegraph routes and imperial power plays, with political stakes if those lines get cut. The community? Instantly split between awe, jokes, and link-drops. One reader cheered the zoomable pics (“enhance!” vibes), while another kicked off a link-flexing arms race: the Jon Bois doc that ties telegraph pioneers to the sitcom Home Improvement (watch) got big laughs, and NPR’s Throughline (National Public Radio) earned credibility points for its historical sweep (listen). Then the gatekeeping arrived: the “mandatory” Neal Stephenson Wired piece (read) — because no cable thread is complete without it. Biggest drama moment? A collector’s quest to buy a cross-section of a real undersea cable like a trophy slice of internet, stirring a flurry of “where do you even get that?” energy. Meanwhile, the article’s reminder that early cables depended on Malay tree sap (gutta percha) and local knowledge added weight: our modern speed is built on overlooked hands and old power routes, now mirrored by fiber lines today.
Key Points
- •About 97% of global internet traffic travels through undersea cables spanning roughly 1.2 million km.
- •Subsea fibre‑optic cables are critical infrastructure for communication, commerce, government, and military operations.
- •The first international telegraph cable connected Britain and France in 1851, using gutta‑percha insulation.
- •The 1866 Transatlantic telegraph cable between Britain and the USA revolutionized global communication.
- •Demand for gutta‑percha was unsustainable, prompting British plantations in Malaya and reliance on local expertise; modern fibre‑optic routes follow historic paths.