THEORY-487: Social ontology asks two separable questions about a social category: what grounds a fact of that kind, the conditions something must meet, and what anchors those conditions, the facts that put them in place; theories of the field, such as convention, collective acceptance and practice, answer the second, and a theory can be individualist about one and not the other

Source

Brian Epstein (2018; substantive revision 2024), “Social Ontology”, Stanford Encyclopedia of Philosophy, LIT-487, read in full (the 2024 revision) in NOTE-393, with the author’s open-access précis of The Ant Trap (Journal of Social Ontology 2(1):125–134, 2016), cited there as “the précis”. The Ant Trap itself (LIT-478) is not lawfully readable.

What was actually shown

The entry is a survey with a thesis about how the field is organised.

• The distinction (§§2.2, 4; the précis). Take x is kosher. Whether x came from a pig grounds the fact. The frame principle gives the conditions for grounding facts of that kind across a frame, a set of possible worlds. What puts the frame principle in place is its anchor: perhaps religious authority, acceptance, practice or divine command. Likened to semantics and metasemantics.
• The field sorted by it. Psychologism, atomism, physicalism, holism and flat ontologies are answers about determination bases (§3). Agreement, Lewis’s convention, Hart’s accepted rules, Searle’s collective acceptance, Millikan, Boyd and Hacking’s pattern theories, practice theories and language are answers about anchoring (§4).
• Two dimensions (§2.1). Crowds are socially grounded but not constructed; phenotypic racial categories are constructed but not grounded; fiat money is both. The entry cites this to an “Epstein 2016” its bibliography does not list (NOTE-393, Corrections).
• Anchors are heterogeneous (§4.5). US legal categories are anchored by jury instructions, trial results, legislation, judicial interpretation and environmental regularities.
• Individualism split (the précis). Ontological individualism (the social is exhaustively determined by facts about individuals) and anchor individualism are separate claims. The précis says both are false and argues only the first in the book.

What could have come out otherwise. A theory the entry surveys could have answered both questions at once in a way that resists splitting. The entry places each on one side. That is the organising choice, so it is not a test.

What this does not say

• That anchoring is a distinct relation. That it is neither grounding nor meta-grounding is Epstein 2019b’s view, reported as such. Haslanger treats anchoring as epistemic “scaffolding”; Hawley and Schaffer would reduce it to grounding; Schaffer models the split on structuring versus triggering causes (§2.2.2). Each dissent gets a sentence. The entry calls the sharpness of the distinction “a matter of some controversy”.
• That ontological individualism is false. Reported as “recently come under criticism”, with five critics cited and no argument given here (§3; C4).
• That group attitudes outrun member attitudes. Reported as a challenge to local dependence (Bird 2010, Epstein 2022, neither read).
• That a group’s agency or experience is anchored. On the précis, a group is an agent by realising a system of practical activity, not by a status assignment. Whether experience could be anchored the texts do not say (NOTE-393).
• That the survey adjudicates. It reports positions and objections and does not weigh them, except where its organising distinction is at stake.

Connections

• Searle (THEORY-625). On this framework “X counts as Y in C” is a frame principle of one narrow form, and collective acceptance is one theory of anchoring.
• Rules in equilibrium (THEORY-414). NOTE-393 places Hindriks & Guala’s equilibrium plus representation as an answer to the anchoring question. The placement is the record’s, not the entry’s or theirs.
• Ritchie (THEORY-549). §5.1 reports coinciding groups as a problem for the fusion view and Epstein 2019a’s argument that distinct groups can necessarily coincide.
• THEORY-043. NOTE-393 draws two constraints from the framework for any criterion of group consciousness: it must say which of several coinciding wholes it applies to, and it must count the non-member grounds of a group’s organisation. THEORY-043 cites the entry in its body. Its promote_when is unchanged.
• THEORY-057 uses the split, as this entry states it, in its connections on emotion categories and money.