claim

active

claim:a-markov-blanket-is-almost-inevitable-in-coupled-dynamical-systems-with-short-range-interactions

A Markov blanket is (almost) inevitable in coupled dynamical systems with short-range interactions.

Argument that physical laws inevitably produce Markov blankets.

Source paper

extracted_from

Life as we know it

(2013) · Karl Friston

Neighborhood — ranked by edge-count

Findings (3)

finding

Functionally closed subsystems are systematically expelled to the periphery of the ensemble.
supports
Simulated result showing that subsystems unable to influence others cannot invade internal organization, supporting Markov blanket partition.
Functionally closed subsystems were rusticated to the periphery of the ensemble; no simulation produced a functionally closed internal state.
supports
Emergent spatial segregation of closed subsystems.
The principal Markov blanket identified by spectral graph theory formed a clustered structure with internal subsystems enshrouded by sensory and active subsystems.
supports
Visual and quantitative observation of Markov blanket emergence.

Communities (1)

community

Causal emergence in biological systems
members_of
Examines how macro-scale causal power exceeds micro-scale in living and learning systems.

Claims (1)

claim

Life requires only a boundary (Markov blanket), ergodicity, active inference capacity, and autopoiesis—not reproduction or DNA.
supports
Reframes definition of life focusing on dynamical self-organization rather than genetic reproduction.

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.

Any ergodic random dynamical system that possesses a Markov blanket will appear to actively maintain its structural and dynamical integrity.claim0.828
The lemma that leads to the main claim.
Is there a unique Markov blanket for any given system, or do nested multi-scale Markov blankets all exhibit life-like behavior?question0.826
Poses challenge to definition: if every Markov blanket induces active inference, is there lifelike behavior everywhere?
If systems are ergodic and possess a Markov blanket, they will show lifelike behaviour.hypothesis0.822
The main hypothesis the paper attempts to verify heuristically and with simulations.
Under the Markov blanket assumption together with NESS, a generalised synchrony appears, such that the dynamics of internal states can be cast as performing inference over external states via minimisation of variational free energy.claim0.819
Key theoretical claim linking active inference to physics in Section 2.
Does this mean there is lifelike behaviour everywhere or is there something special about the Markov blankets of systems we consider to be alive?question0.818
Philosophical question arising from the ubiquity of Markov blankets.
Markov Blanketsmethod0.813
Markov Blanketconcept0.813
A statistical partition of states that separates internal states from external hidden states; fundamental to self-organization in the paper.
Minimum entropy Markov blankets may characterize biological systems.claim0.811
Conjecture about what distinguishes living from non-living systems.