Artificial Intelligence / Unit 1 AI 0024 short lesson, about 20 seconds
The Belief State
Captions available
The idea
An agent's belief state is what it carries between moments: its running record of the world, what it has learned, and what it wants.
In practice
A nurse mid-shift carries which patient worsened an hour ago and which monitor cries wolf — none of it on the current screen.
Where people slip
Without a belief state an agent is reactive: same stimulus, same act, like a doorbell.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Something wrong in this lesson? Flag it · Sources for Artificial Intelligence