navigating a new environment. They can translate the feelings on their back into knowing the right way to move. But that’s not the stunning part. The stunning part is that they actually begin to perceive the tactile input—to see with it. After enough practice, the tactile input becomes more than a cognitive puzzle that needs translation; it becomes a direct sensation.27 If it seems strange that nerve signals coming from the back can represent vision, bear in mind that your own sense of vision is carried by nothing but millions of nerve signals that just happen to travel along different cables.
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