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THE VIDEO SHELF · airport codes

One Typo, Wrong Continent

CGP Grey explains why airport codes are inconsistent and sometimes confusing, from their origins in old weather station codes to the quirks that cause mistakes. He builds the story around a single typo that sent a flight to the wrong continent.

Why HN readers recommended it

HN people point to it as a fun summary of how messy airport codes are, especially in threads on aviation falsehoods and code collisions.

This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.

Video & recommendation details

Creator / channel
CGP Grey
Topic
airport codes
Format
explainer
Level
general
HN recommenders in dataset
2
HN mentions in dataset
3
Recommendation years in dataset
2022–2025

These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.

From the original HN conversations

Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.

  • CGP Grey did a couple of episodes on runways[0] and airport codes[1] that are just fascinating and worth the watch [0] [LINK] [1] [VIDEO]

    simplyinfinity on Hacker News · 2022-12
    In Airport Runway Names Shift with Magnetic Field
  • Great Summary of how messed up Airport Codes are by CGP Grey [VIDEO] including (attempts at) a few in-depth reasons for why these quirks exists

    Titan2189 on Hacker News · 2025-06
    In Falsehoods programmers believe about aviation

Summaries, classifications and recommendation records are from the HackerTube source dataset. Read about this library and its limitations.