Bleg: Mental Activities?

September 23, 2009

I want to make a distinction between mental activities and mental states.

As I only have some vague ideas, it is easier to point to some examples. Some examples of mental activities: counterfactual reasoning, doxastic deliberation, planning, daydreaming, dreaming, playing a pretend game. Some examples of mental states: beliefs, desires, imaginings, emotions, perceptions. My sense is that there really is something different about the former cluster compared to the latter. Any suggestions on how that distinction might be made more precise?

Normative Because False!?#

September 18, 2009

In what is meant to be  “a contribution of major importance to a unified theory of probability and utility” Jeffrey (The Logic of Decision) says about Bayesian decision theory that

Indeed, it is because logic and decision theory are woefully inadequate as descriptions that they are of interest as norms. (p.167)

Now,  here’s a worry I presented yesterday in the seminar and that I’d like to present again, so that other people may consider it and that the ones that heard it can see why it’s worrisome. There are, at least, two questions the claim above prompts:

1) If theory T is woefully inadequate as a description of phenomena F, and yet it is meant to be a normative theory of F, couldn’t it be that it makes absurd demands about F?

2) If it is in virtue of theory T’s woeful descriptive inadequacy towards F that T is an interesting normative theory of F, wouldn’t it be the case that false descriptive theories turn out to be interesting normative theories?

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