Artificial Intelligence / Unit 6 AI 0306 short lesson, about 20 seconds
Always a Posterior
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The idea
A probabilistic reasoner always has a posterior — sometimes a humble one — where the rule system had only silence past its edge.
In practice
A plant with unfamiliar symptoms gets a hedged belief, not bare nothing — and a humble posterior is itself information.
Where people slip
Hedged is not vague: 0.5 is a precise statement of balance, updatable the moment evidence arrives.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
- Nothing yet depends on this.
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