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Plasticity as the Mirror of Empowerment (David Abel) - Sensorimotor AI Journal Club

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Two weeks ago, David Abel argued that RL’s central concepts need precise mathematical definitions. Last week, Mani Hamidi responded through the lens of evolutionary theory, focusing in particular on adaptation. Both talks emphasized one gap: we talk about agents constantly, but we still lack a formal vocabulary for their properties, the way physics has mass and energy for inanimate matter.

Two weeks ago, David Abel argued that RL’s central concepts need precise mathematical definitions. Last week, Mani Hamidi responded through the lens of evolutionary theory, focusing in particular on adaptation . Both talks emphasized one gap: we talk about agents constantly, but we still lack a formal vocabulary for their properties, the way physics has mass and energy for inanimate matter. Today, Dave returned with a concrete proposal: plasticity and empowerment might be the elemental properties of agents. He formalized both using a single information-theoretic tool, showed they are exact mir

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