Artificial Intelligence / Unit 1 AI 0025 short lesson, about 20 seconds
Observability
Captions available
The idea
An environment is fully observable when the agent's stimuli reveal everything relevant about its current state, and partially observable when they do not.
In practice
A chessboard hides nothing that matters; city driving hides the child behind the parked car.
Where people slip
In fog, an agent must act on what it believes, not on what it sees — belief becomes the main event.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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