He was co-host of Philosophy Talk, a nationally syndicated radio program which he co-founded with Ken Taylor in 2004. He is also part of the Center for the Study of Language and Information (CSLI)—an independent research center founded in 1983.[7]
In logic, Perry and Jon Barwise are known for discussion of the slingshot argument, especially in their 1981 article "Semantic Innocence and Uncompromising Situations".
In his 2001 book Knowledge, Possibility and Consciousness, Perry argues for what he calls "antecedent physicalism", according to which physicalism is antecedently taken to be a plausible and reasonable position, provided that there are no better rival theories. Thus, Perry defends a version of type physicalism against three major philosophical arguments for dualism: the zombie argument, the knowledge argument, and the modal argument.[8][9]
Perry also produces non-technical work that reaches a wider audience, such as his humorous 1996 online essay entitled "Structured Procrastination".[10] Perry was awarded an Ig Nobel Prize in Literature for this essay in 2011.[11][12] It states that "[t]o be a high achiever, always work on something important, using it as a way to avoid doing something that's even more important".
The Problem of the Essential Indexical
In 1979, Perry published "The Problem of the Essential Indexical" in which he combined his work on philosophy of language and philosophy of mind. Essential indexicals (I, here, and now) are parts of language that cannot be paraphrased away. They are seen as locating beliefs and are essential to understand the speaker's belief. Perry presents a now famous example to illustrate his point:
"I once followed a trail of sugar on a supermarket floor, pushing my cart down the aisle on one side of a tall counter and back the aisle on the other, seeking the shopper with the torn sack to tell him he was making a mess. With each trip around the counter, the trail became thicker. But I seemed unable to catch up. Finally it dawned on me. I was the shopper I was trying to catch."
In this example, the pronoun "I" is essentially indexical because it allowed Perry to realize that it was he himself making the mess. This realization caused him to change his behavior. Essential indexicals create the impetus for action. They cannot be paraphrased away while retaining their immediacy. If Perry were to say "Perry realized that Perry was making a mess", it would still not be essentially indexical because Perry would still have to understand that he himself is Perry. Without that extra step, there would be no reason for him to change his action. "I" is the only essential indexical in that situation.
(1983) Situations and Attitudes (with Jon Barwise). Cambridge, Massachusetts: Bradford Books/MIT Press. (Reprinted with a new introduction by CSLI Publications, 1999.)
^"John Perry". UC RIverside Department of Philosophy. Archived from the original on Nov 5, 2014. Professor Perry received his B.A. in Philosophy from Doane College and his Ph.D. from Cornell in 1968. He was a member of the Philosophy Department at UCLA from 1968 to 1974, and since 1974 has been at Stanford University, where he is the Henry Walgrave Stuart Professor of Philosophy. Professor Perry comes to Riverside half time, in conjunction with his phased retirement from Stanford. Professor Perry has published several books and many articles on the philosophy of language and the philosophy of mind. He received a Jean Nicod Prize (France), a Humboldt Prize (Germany), and a Guggenheim Fellowship. At Stanford he served as the Chair of the Philosophy Department for many years, and also as Director of the Center for the Study of Language and Information, which he helped to found in 1983. He is co-host of the radio program "Philosophy Talk."
