3159
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Beliefs and desires aren't real; they are prediction techniques [Dennett]
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Full Idea:
Intentional systems don't really have beliefs and desires, but one can explain and predict their behaviour by ascribing beliefs and desires to them. This strategy is pragmatic, not right or wrong.
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From:
Daniel C. Dennett (Brainstorms:Essays on Mind and Psychology [1978], p.7?)
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A reaction:
If the ascription of beliefs and desires explains behaviour, then that is good grounds for thinking they might be real features of the brain, and even if that is not so, they are real enough as abstractions from brain events, like the 'economic climate'.
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19035
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General Relativity allows substantivalism about space-time - that it has independent properties [Hoefer]
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Full Idea:
General Relativity describes space-time in a way that allows it to exist with determinate properties not reducible to the properties and relations of its material contents. Hence nearly all physicists and philosophers writing on GR are substantivalists.
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From:
Carl Hoefer (The Metaphysics of Space-Time Substantivalism [1996], p.5), quoted by Barbara Vetter - Potentiality 7.3
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A reaction:
I'm encouraged by this, as I instinctly favour substantivalism. Imagine removing all the objects from space-time, one by one. What happens as you approach the end of the task? Once they are removed, can they be replaced?
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