Season 5-4. Was 404 Error actually a room number at CERN?

14 min 24 sec0

The number "404" is familiar to anyone working in the web industry as well as the average user. In this episode, we dive deep into a famous urban legend surrounding the origin of this error code.

Verifying the theory that it started in Room 404 at CERN.

There is a story that in the early days of the internet, the central database was located in Room 404 at CERN in Switzerland. The legend goes that files were transferred manually at the time, and when one couldn't be found, the error was returned to signify it wasn't in Room 404. It’s a wonderful story that feels full of history, but what is the truth?

The surprising reaction from a co-developer reveals the truth.

Robert Cailliau, one of the co-developers of the WWW, discussed this rumor in an interview. The reaction he displayed serves as a symbol of just how detached from reality this story actually was. Looking at the technical background, such as the precious memory constraints of the time and the challenges engineers faced, the true nature of this number begins to emerge.

The design philosophy that intentionally allowed for imperfection is fascinating.

The perspective that the very existence of the 404 error was one of the factors supporting the explosive spread of the Web is truly interesting. There was a rational reason behind "allowing" broken links to exist, which helped the internet grow significantly. We continue into deeper topics, so please be sure to listen to the full episode.

* This summary is generated automatically by AI and may contain errors.

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