Source
Jennings (2026), LIT-1963, pp. 15–21 and 27–29, and §7 (pp. 34–35); read in NOTE-1508.
What was actually shown
The condition, argued on Bénard cells. “Without a functional boundary, contextual emergence would collapse into either weak emergence or supervenience” (p. 19), because the heating element and container could be counted among the parts. “In contextual emergence the context as context is required to bring about the emergent phenomenon” (p. 19), and “the thermal and material properties at stake here are macro-level ones, so contextual emergence is a better fit” (p. 20). Fn. 15 says the paper “stipulates the importance of a boundary”.
The application. The skull and meninges “shelter and separate the electrical activity of the brain from its surrounding environment”, the brain stem passes activity in, and “these elements constrain what can influence the behavior of the organism, which in turn allows the macro-level patterns to constrain micro-level ones” (p. 29). The evidence offered is phase-amplitude coupling and 1/f scaling (pp. 27–28) and ephaptic coupling, including across a transection (p. 35).
What could have come out otherwise is limited. The paper’s own alternative, global supervenience over the parts and their context (p. 19), is set aside as a worse explanation, not shown false. Weakly emergent models produce the neural signatures.
What this does not say
- That the subject has causal powers in Bishop’s sense. Bishop’s 2024 SEP entry (THEORY-1333) presents contextual emergence as real constraint by larger-scale stability conditions, with convection as the case, and contrasts it with causal powers. The constraint is Bishop’s; the boundary condition and the causal-power reading are Jennings’s. (Revised on 2026-11-03, from a gloss of Bishop and Atmanspacher as stability conditions for a description only.)
- That CLAIM-334 is wrong. It denies its premise; it offers no intervention on the macro level that holds the base fixed.
- That the subject is free. That further step is the paper’s and is not part of this reading.
Note of 2026-11-03: the neural evidence, read
Weaker than the paper states. Szczepanski et al. are correlational (THEORY-1317); phase-amplitude coupling can be a waveform artefact (Donoghue et al., THEORY-1312); 1/f structure is present in every recording (THEORY-1337); and ephaptic coupling is circuit physics with fields applied from outside (THEORY-1346).
Juarrero 2023 (NOTE-1532) does not use “contextual emergence”. She shares the Bénard case (p. 91) and even the skull (p. 168), but her boundaries are differences of rate that “need not be tangible, material structures” (p. 77), and she holds the governing regime not other than the parts (p. 81). So she does not supply the irreducible boundary this theory’s promote_when asks for.