In "What is it like to be a bat?" Nagel says the following:
Here, Nagel seems to be arguing as follows:if facts of experience—facts about what it is like for the experiencing organism—are accessible only from one point of view, then it is a mystery how the true character of experiences could be revealed in the physical operation of that organism.
- Facts about what it is like for the experiencing organism are accessible only to that organism.
- Therefore, the true nature of these subjective facts cannot be explained by the physical operation of that organism.
- Only a bat can experience what it is like to be a bat.
- Therefore, what it is like to be a bat cannot be fully explained by reference to the physical operation of a bat.
- Only a dog can experience what it is like to bark.
- Therefore, barking cannot be fully explained in physical terms.