Some things, like a melody, can be learned without moving the body. We can sit perfectly still, with eyes closed, and learn a new melody by just listening to how the sounds change over time. But most learning requires that we actively move and explore. Imagine you enter a new house, one you have not been in before. If you don’t move, there will be no changes in your sensory input, and you can’t possibly learn anything about the house. To learn a model of the house, you have to look in different directions and walk from room to room. You need to open doors, peek in drawers, and pick up objects.
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