Nagel takes a slightly different approach.
    In an effort to make his argument more adaptable and relatable, he takes the stand of humans attempting to understand the sonar capabilities of bats.
    Even with the entire physical database at one's fingertips, humans would not be able to fully perceive or understand a bat's sonar system, namely what it is like to perceive something with a bat's sonar.

My car emits a sound while parking in reverse. As the car behind gets closer, the sound is emitted more frequently, and becomes constant under a certain distance. When I'm parking a different car, I'm unable to 'feel' the distance from the next car. It's like being blind.