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Underwater Cables Carry 97 Percent of Intercontinental Data
Nearly all international internet traffic travels through a network of roughly 550 submarine fiber optic cables laid across ocean floors. These cables, some thinner than a garden hose, carry everything from emails to financial transactions between continents.
Why It’s Fascinating
Despite the existence of satellites, the physical internet is overwhelmingly submarine. Sharks occasionally bite the cables, anchors damage them, and their routes are closely guarded national security secrets. The entire modern digital economy hangs on glass threads at the bottom of the ocean.
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There Are More Possible Internet Addresses in IPv6 Than Atoms on Earth
IPv6 supports 340 undecillion unique addresses (3.4 x 10^38). Earth contains roughly 10^50 atoms, but the number of IPv6 addresses per square meter of Earth's surface is still about 6.7 x 10^23 — Avogadro's number.
The First Computer Bug Was an Actual Bug
In 1947, engineers working on the Harvard Mark II computer found a moth trapped in a relay, causing a malfunction. Grace Hopper taped the moth into the logbook with the note 'First actual case of bug being found,' popularizing the term 'debugging.'
The Entire Text of Wikipedia Is Only About 22 Gigabytes
All of English Wikipedia's article text, compressed, fits in roughly 22 gigabytes — small enough to fit on a basic USB drive. The full database with edit histories and metadata is much larger, but the sum of all human knowledge on Wikipedia is surprisingly compact.
Over 90 Percent of the World's Data Was Created in the Last Two Years
Humanity generates approximately 2.5 quintillion bytes of data every day. The explosion of smartphones, IoT devices, social media, and cloud computing means the vast majority of all data ever created is less than two years old.
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