In our original article on the Primal Layers framework, we described a multi-layered AI architecture inspired by the evolutionary structure of the human brain. Layer 1 (the brainstem) handles homeostasis and reflexes. Layer 2 (the limbic system) handles motivation, memory, and emotional valence. Layer 3 (the cerebellum) handles motor learning and predictive control. And the Cognitive Layer (the neocortex) handles abstract reasoning and planning.
What we didn’t address is how these layers manage knowledge over time. How does PrimalBot learn something new on Tuesday without forgetting what it learned on Monday? The answer, like so many in this project, comes from biology. And it turns out that one of the most important things a brain does is sleep.
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