Computer Science / Unit 1 CS 0031 short lesson, about 20 seconds
The Y2K Lesson
Captions available
The idea
Design shortcuts inside code can surface as society-scale problems decades later — the Y2K problem grew from storing years as two digits while memory was expensive.
In practice
A saving of two characters per date rippled into a worldwide repair effort.
Where people slip
Consequences outlive the constraints that excused the shortcut.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
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