claim

active

claim:no-finite-system-can-measure-the-entanglement-entropy-across-its-own-boundary-rendering-the-separability-of-agent-from-environment-permanently-unevidenceable

No finite system can measure the entanglement entropy across its own boundary, rendering the separability of agent from environment permanently unevidenceable.

Prior result from quantum information theory cited as evidence.

Source paper

extracted_from

There is no self-evidence: A physics of emptiness realisation

(2026) · Lars Sandved-Smith · Chris Fields · Thomas Doctor · Ruben Laukkonen +1

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Papers (1)

paper

There is no self-evidence: A physics of emptiness realisation
cites

Findings (1)

finding

No finite system A can measure the entanglement entropy S(|AB>) across the boundary B that separates it from its environment B (Fields & Glazebrook 2023, Corollary 3.1)
restates
The core impossibility result imported from quantum information theory; basis of the entire argument

Claims (1)

claim

One dimension of self-evidencing is provably impossible: evidencing the boundary that would constitute the agent as an entity separate from their environment.
supports
Central thesis of the paper.

Related by similarity (8)

cosine ≥ 0.65 · no typed edge

Entities in the same semantic neighborhood but without a typed relation to this one — candidates for new edges or unrecognized duplicates.

A cannot measure the entanglement entropy across any internal boundary of its environment; it cannot verify that any part of the world it attends to is genuinely independent of everything else (Fields & Glazebrook 2023, Corollary 3.2)finding0.883
Generalises the self-evidence impossibility to all boundaries; grounds the teaching that all dharmas are empty
No finite agent can obtain evidence for its own separability from its environmentclaim0.817
Core claim of the paper; derives from Corollary 3.1 of Fields & Glazebrook (2023)
Can a finite agent obtain evidence that it is separable from its environment?question0.801
The central question the paper answers negatively via quantum information theory
The separability of agent from environment is permanently unevidenceable.claim0.791
Consequence of the no-self-measurement result; the boundary cannot be empirically established.
entanglement entropy across boundaryconcept0.784
A measure of quantum entanglement across the agent-environment interface; its self-measurement is impossible for finite systems.
Evidencing the boundary that would constitute the agent as an entity separate from their environment is provably impossible.claim0.757
Central thesis: the self-environment cut cannot be self-evidencing.
Action places an upper bound on the entropy of biological states, thereby conserving structural and dynamical integrity.claim0.757
Autopoietic aspect of active inference.
The FEP is asymptotically equivalent to the Principle of Unitarity: as prediction error approaches zero, A and B would need to share identical reference frames, which requires entanglement rather than separability (Fields et al. 2022)finding0.739
Demonstrates that optimal modelling erodes the very separability condition that defines a bounded agent

Restated by (1)

cosine ≥ 0.90

Other entities that say roughly the same thing. May be merge candidates or independent restatements across papers.

finding
No finite system A can measure the entanglement entropy S(|AB>) across the boundary B that separates it from its environment B (Fields & Glazebrook 2023, Corollary 3.1)