This week at The Junkyard, we’re hosting a symposium on Peter Langland-Hassan’s recent book Explaining Imagination. Today we begin with an introduction from Peter. Commentaries and replies to follow Tuesday through Thursday.
If you can’t make one, you don’t know how it works.
So said Fred Dretske in “A recipe for thought,” and so I’m inclined to believe. He offered the slogan both as “something like an engineer’s ideal, a designer’s vision, of what it takes to understand how something works,” and as an axiom at the heart of philosophical naturalism—one that applies as much to the mind as to anything else (Dretske, 2002).
Knowing how to make something, in Dretske’s sense, entails knowing how to write a recipe for it. Such a recipe can’t include, as an ingredient, the very thing it is a recipe for. “One cannot have a recipe for a cake that lists a cake, not even a small cake, as an ingredient,” Dretske explains. “Recipes of this sort will not help one understand what a cake is.” Likewise for intelligence: “if you want to know what intelligence is, you need a recipe for creating it out of parts you already understand” (Dretske, 2002).
The same points apply to imagination. We won’t understand what imagination is—won’t be able to explain imagination—until we can write a recipe for making it out of parts we already understand. My book, Explaining Imagination, is a compendium of such recipes.
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