Our eyes are special detectors. They allow us to register information not only from across the room but from across the universe. Without vision, the science of astronomy would never have been born and our capacity to measure our place in the universe would have been hopelessly stunted. Think of bats. Whatever bat secrets gets passed from one generation to the next, you can bet that none of them are based on the appearance of the night sky.

Our eyes are special detectors. They allow us to register information not only from across the room but from across the universe. Without vision, the science of astronomy would never have been born and our capacity to measure our place in the universe would have been hopelessly stunted. Think of bats. Whatever bat secrets gets passed from one generation to the next, you can bet that none of them are based on the appearance of the night sky.