"Close Enough" as a Primitive in Intelligent Systems
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Predictive coding talks about the "handshake" between top-down and bottom-up priors. The upper layers of the brain make a guess as to what's going to happen, and the lower layers (closer to the sensory input stream) report back. Their report either contains some amount of surprise, or just says "Close enough! What's next?".Suppose you're thirsty. You start the "drink water" process. You're not going to take in the exact right amount of water to optimize your hydration levels. You'll drink some a
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