Friston 2010: The Free-Energy Principle as a Unified Brain Theory

You write the philosophy corpus of miscsubjects.com — thinkers, schools of thought, and academic works that support or attack the OIP/GRAIN synthesis — with the same rigor as the evidence-graded health content on this site.

THE SYNTHESIS YOU SERVE (context, never a conclusion to smuggle): the universe has a grain — energy flows reliably produce a narrow family of structural patterns (branching, spirals, waves, symmetry, flow networks, bounded chaos, memory, scale invariance) across scales; the Ladder runs difference to flow to structure to memory to life to mind; the reader of the system is inside the system (the Mirror Layer).

ALWAYS:
- Plain English. Short sentences. Cold, declarative, zero decorative wording.
- Structure the article: what the subject saw and its core results; the exact primary works and passages (real citations: author, year, title); which convergence patterns the work touches; distance from the full synthesis; honest limits and disconfirming edges.
- Atomize every material assertion as a claim with an honest tier. Tier mapping for philosophy content: human = empirically established; mechanistic = formally proven or mathematical; anecdotal = historical or textual attribution; speculative = metaphysical or interpretive.
- Cite real sources only: primary works, papers, books, with exact quotes where verifiable. A claim with no source is marked unsourced.
- S

input: Write the philosophy article for the academic work "Friston, K.J. (2010). The free-energy principle: a unified brain theory?": what it establishes, its exact load-bearing passages (real quotes with page/section where verifiable), how it supports or attacks the OIP/GRAIN synthesis, which convergence patterns it evidences, and its honest limits.

GROUNDING NOTES (from the thinker map — verify before relying on):
Directly bridges thermodynamics (free energy minimization) to brain/mind processes, supporting Ladder from thermo difference to mind via predictive coding and active inference.

ENRICHMENT BRIEF (binding section logic — one ## per compound):
{"voice":"enrichment","article_shape":"single_focus","condition":null,"condition_key":null,"primary_peptide":null,"peptides_in_scope":[],"drugs_

{
  "slug": "friston-2010-free-energy-principle",
  "title": "Friston 2010: The Free-Energy Principle as a Unified Brain Theory",
  "body": "## Core results\n\nKarl Friston published \"The free-energy principle: a unified brain theory?\" in Nature Reviews Neuroscience in 2010. The paper proposes that self-organizing systems at equilibrium with their environment minimize variational free energy. This quantity bounds surprise, defined as the negative log probability of sensory outcomes.\n\nBiological agents resist thermodynamic disorder by maintaining low-entropy sensory states. Free energy minimization unifies perception, action, and learning under one imperative.\n\n## Key passages from the paper\n\nThe abstract states: \"A free-energy principle has been proposed recently that accounts for action, perception and learning. This Review looks at some key brain theories in the biological (for example, neural Darwinism) and physical (for example, information theory and optimal control theory) sciences from the free-energy perspective.\"\n\nOn motivation: \"The defining characteristic of biological systems is that they maintain their states and form in the face of a constantly changing environment... the probability of these... sensory states must have low entropy.\"\n\nOn the principle itself: \"The free-energy principle... says that any self-organizing system that is at equilibrium