16187
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The Barcan Formulas are orthodox, but clash with the attractive Actualist view [Simchen]
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Full Idea:
The Barcan Formulas are a threat to 'actualism' in modal metaphysics, which seems regrettable since the Formulas are validated by standard modal logics, but clash with the plausible and attractive actualist view (that there are no merely possible things).
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From:
Ori Simchen (The Barcan Formula and Metaphysics [2013], §1)
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A reaction:
He notes that the Barcan Formulas 'appear to require quantification over possibilia'. So are you prepared to accept the 'possible elephant in your kitchen'? Conceptually yes, but actually no, I would have thought. So possibilia are conceptual.
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9160
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Lots of propositions are default reasonable, but the a priori ones are empirically indefeasible [Field,H]
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Full Idea:
Propositions such as 'People usually tell the truth' seem to count as default reasonable, but it is odd to count them as a priori. Empirical indefeasibility seems the obvious way to distinguish those default reasonable propositions that are a priori.
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From:
Hartry Field (Apriority as an Evaluative Notion [2000], 1)
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A reaction:
Sounds reasonable, but it would mean that all the uniformities of nature would then count as a priori. 'Every physical object exerts gravity' probably has no counterexamples, but doesn't seem a priori (even if it is necessary). See Idea 9164.
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9165
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Reliability only makes a rule reasonable if we place a value on the truth produced by reliable processes [Field,H]
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Full Idea:
Reliability is not a 'factual property'; in calling a rule reasonable we are evaluating it, and all that makes sense to ask about is what we value. We place a high value on the reliability of our inductive and perceptual rules that lead to truth.
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From:
Hartry Field (Apriority as an Evaluative Notion [2000], 5)
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A reaction:
This doesn't seem to be a contradiction of reliabilism, since truth is a pretty widespread epistemological value. If you do value truth, then eyes are pretty reliable organs for attaining it. Reliabilism is still wrong, but not for this reason.
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9162
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Believing nothing, or only logical truths, is very reliable, but we want a lot more than that [Field,H]
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Full Idea:
Reliability is not all we want in an inductive rule. Completely reliable methods are available, such as believing nothing, or only believing logical truths. But we don't value them, but value less reliable methods with other characteristics.
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From:
Hartry Field (Apriority as an Evaluative Notion [2000], 3)
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A reaction:
I would take this excellent point to be an advertisement for inference to the best explanation, which requires not only reliable inputs of information, but also a presiding rational judge to assess the mass of evidence.
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9163
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If we only use induction to assess induction, it is empirically indefeasible, and hence a priori [Field,H]
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Full Idea:
If some inductive rule is basic for us, in the sense that we never assess it using any rules other than itself, then it must be one that we treat as empirically indefeasible (hence as fully a priori, given that it will surely have default status).
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From:
Hartry Field (Apriority as an Evaluative Notion [2000], 4)
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A reaction:
This follows on from Field's account of a priori knowledge. See Ideas 9160 and 9164. I think of induction as simply learning from experience, but if experience goes mad I will cease to trust it. (A rationalist view).
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7903
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The six perfections are giving, morality, patience, vigour, meditation, and wisdom [Nagarjuna]
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Full Idea:
The six perfections are of giving, morality, patience, vigour, meditation, and wisdom.
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From:
Nagarjuna (Mahaprajnaparamitashastra [c.120], 88)
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A reaction:
What is 'morality', if giving is not part of it? I like patience and vigour being two of the virtues, which immediately implies an Aristotelian mean (which is always what is 'appropriate').
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