Artificial Intelligence / Unit 2 AI 0077 short lesson, about 20 seconds
The Frontier
Captions available
The idea
A search keeps a frontier: the set of paths built so far but not yet extended — the procedure's entire to-do list.
In practice
At Riverbend's start the frontier holds one trivial path — Home, alone — waiting to be extended.
Where people slip
The frontier holds paths, not places — a subtle difference that carries the whole method.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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