Philosophy, et cetera 2008-05-15

Natural and Projectible Predicates

Rachael remarks on the 'structure and similarity' discussion:Should we distinguish between predicates that are projectable and predicates that are natural? "Green", "ultraviolety-looking to bees", "owned by Rachael", and "tasty to alpacas" are fairly projectable, but I doubt they're natural. I don't expect a bee to care which objects are green, a mouse to care which objects are owned by Rachael, or a human (who doesn't have a special interest in bees or alpacas) to care which objects are ultraviolety-looking to bees or tasty to alpacas. There's a sense in which all the above concepts are parochial, and are only worth adopting because they're convenient. Furthermore, there's a sense in which there's no conflict between these different ways of carving up the world: I don't think the alpacas are wrong, and I might find it very important to adopt their concepts ...

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