What if human eyes were wired to the hearing part of the brain and the ears to the visual part of the brain such that all attributes of the sense are lined up perfectly with the corresponding degrees of the sense?
What if you mixed around smell or taste or touch? They would all produce patterns of electrical signals. Would you be seeing sound and hearing pictures?
Light waves telling your hearing that something is more intense in light or a different color with different pitches and volumes... And sounds making colorful moving wavy patterns in your vision.
Will you be able to function normally?
I find this fun to think about
