ABSTRACT
Echolocatory experience probably just has an auditory character. It's the experience of hearing rapid squeaks and shrieks, and their echoes, and though a bit unusual to consider, it is easily within one's imaginative grasp. To the complaint that knowing what it is like for a bat to hear echoes isn't the same as knowing what it is like for a human, or for me, one need only point out that it should at least be no more mysterious than asking what it is like for a dog to see something. Presumably, it is like seeing something. Notice people tend to concur about what vision is like, but not echolocation. Occasionally philosophers offer explicit arguments, such as Macpherson, who contends that it is unclear whether or not echolocation is a kind of hearing. This is because no matter which criterion we choose for individuating the senses, echolocation shares some features with seeing, others with hearing, and still others with neither.
