Grounding theorists like Kit Fine distinguish metaphysical explanation from mere modal covariation, arguing that identity claims are too weak to explain supervenience directionality.

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Reasons For

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Reason for

1.Modal covariation alone cannot distinguish whether A grounds B or B grounds A, since both directions preserve necessary covariation.
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2.Identity statements (like 'water is H2O') describe what things are, not why one property depends on another's obtaining.
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3.Explanatory directionality requires asymmetry; grounding provides this asymmetry where pure modality cannot.
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Reasons Against

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Reason against

1.Identity claims establish conceptual priority: if water just is H2O, explaining water's liquidity via H2O's bonds suffices.
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2.Grounding's supposed directional asymmetry may itself require modal and identity facts to be determinate; it adds no new explanatory layer.
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3.Supervenience directionality can be explained by causal history and physical composition without invoking controversial grounding relations.
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Key Terms

Grounding theory(in contemporary metaphysics): A modern philosophical framework that studies what grounds or explains the existence and truth of things in reality.
Kit Fine(as a philosopher referenced for his views on concreteness): A contemporary philosopher who studies metaphysics (the nature of reality) and has written extensively about what makes something real or concrete versus abstract.
Modal covariation(described as 'mere' to contrast with true metaphysical explanation): When two things always change together—if one exists, the other does too—but one doesn't necessarily explain why the other exists.
Supervenience directionality(what identity claims are said to fail to explain): The question of which facts are fundamental and which facts depend on them—for example, whether mental facts depend on physical facts, or vice versa.
identity claims(in logic and metaphysics): Statements saying that two things are the same thing, or that something is what it is.
metaphysical explanation(At least three varieties are distinguished in recent literature regarding how property-sharing explains resemblance): An explanation of why a fact obtains in terms of what grounds or accounts for it at the level of fundamental reality, not merely causal or logical explanation
supervenience(Philosophy of mind and reduction; contrasted with full reduction): A relation in which mental (or higher-level) states are dependent on physiological (or lower-level) states such that any two cases with identical lower-level bases are identical in their higher-level states; a necessary but not sufficient condition for reduction.

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Truth & Knowledge1 linked Modality & Possibility1 linked

Explanatory directionality requires asymmetry; grounding provides this asymmetry...Grounding's supposed directional asymmetry may itself require modal and identity...

Details

Type: claim
Perspectives: 2 (1 for, 1 against)
Edits: 1 edit