Coscientist
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Extracranial

Sunghyun Cho's personal digital brain and publishing system

Extracranial is Sunghyun Cho's personal digital brain: a static-site publishing system with automated links and controlled decay. Old notes fade unless explicitly kept evergreen. It is described as an "Exosuit for Superbrains."

The system implements multilingual Memex principles: automatic language detection, hreflang tags for locale-specific content, and bilingual operation in English and Korean. This supports Sunghyun Cho's vision of going across the Sprachraums, where knowledge is not constrained by any single language sphere. The architecture allows content to be written in one language and automatically distributed globally in different languages.

It grew out of Project Aldehyde and the ideas in Creating Next-gen Digital Brains.

Reference: https://cho.sh/r/000000 (Opens in a New Tab).

12 Notes Link Here

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All Notes

147 Notes

  • -Across the Sprachraums
  • -Active Recall
  • -AI
  • -AI Slop
  • -AI-Induced Illusions of Competence
  • -Argumentative Act
  • -Argumentative Relations
  • -As We May Think
  • -Assumption
  • -Attack
  • -Bilingual Cognition
  • -Branched Resolution Map
  • -Claim
  • -Claim Lifecycle
  • -Claim Status Taxonomy
  • -Cognitive Agency Preservation
  • -Cognitive Exoskeleton
  • -Cognitive Sovereignty
  • -Confidence
  • -Contemplation Labor
  • -Contention
  • -Contention as Memorable Anchor
  • -Correction vs Drift
  • -Coscientist
  • -Counterexample
  • -Counterexample-First Search
  • -Creating Next-gen Digital Brains
  • -Cross-Linguistic Synthesis
  • -Dark Night of the Soul
  • -Definition Drift
  • -Desirable Difficulty in Verification
  • -Deskilling Through AI Delegation
  • -Dialectical Graph
  • -Dialectical Graph Edges
  • -Dialectical Graph Nodes
  • -Dialectical Interleaving
  • -Digital Brain
  • -Digital Garden
  • -Digital Jungle
  • -Document Collision
  • -Drift Phenomena
  • -Encyclopedia Galactica
  • -Encyclopedia Meltdown
  • -Environmental Drift
  • -Epistemic Protocol Layer
  • -Evidence Independence
  • -Evidence Span
  • -Exploration Mechanisms
  • -Exploration Strategies
  • 01Extracranial (Currently Open at Position 1)
  • -Federated Knowledge Network
  • -Fluency Trap
  • -Forgetting Curve
  • -Foundation Fiction
  • -Friction as Enemy
  • -From Memex to Dialectical Graph
  • -From Preservation to Capability
  • -Galactic Empire
  • -GitHub for Scientists
  • -Graph as Meltdown Defense
  • -Graph Components
  • -Graph-Based Spaced Repetition
  • -Hallucination
  • -Hari Seldon
  • -Human Agency in AI
  • -Illusions of Competence
  • -Incompatibility Taxonomy
  • -Inference Layer
  • -Institutional Brain Rot
  • -Intellectual Companion
  • -Inter-Sprachraum Communication
  • -Interleaving
  • -Isaac Asimov
  • -Issue Node
  • -Knowledge Ark
  • -Knowledge Constitution
  • -Knowledge Failure Modes
  • -Knowledge Synthesis
  • -Knowledge System Layers
  • -Language-Agnostic Indexing
  • -Learning Science Principles
  • -LLM
  • -Low-Background Steel
  • -Meaning Loss
  • -Memex
  • -Meta-learning
  • -Method
  • -Method-Conclusion Coupling
  • -Minimum Contradiction Set
  • -Minimum Cut
  • -Model Collapse
  • -Monolith as Interface Metaphor
  • -Multi-AI Consensus Protocol
  • -Multilingual Knowledge Mesh
  • -Multilingual Memex
  • -Mystery and Minimalism
  • -Narrative Layer
  • -Natural Science Engineer
  • -Nonstationarity
  • -Normalized Proposition
  • -Operator
  • -Personal Knowledge Evolution
  • -Personal to Institutional Knowledge
  • -Pre-Contamination Resource
  • -Pre-LLM Text
  • -Project Aldehyde
  • -Project PIRI
  • -Provenance
  • -Psychohistory
  • -RAG
  • -RAG Limitations
  • -Rebuttal-First Search
  • -Relation Typing vs Similarity
  • -Replication Path Separation
  • -Responsibility Line
  • -Retrieval Practice
  • -Scapa Flow
  • -ScienceOps
  • -Scope
  • -Second Brain
  • -Seldon Plan
  • -Semantic Drift
  • -Signal Without Explanation
  • -Source
  • -Spaced Repetition
  • -Spacing Effect
  • -Sprachraum
  • -Status Transition Rules
  • -Sunghyun Cho
  • -Superbrain
  • -Synthesis Mechanisms
  • -System Drift
  • -The Monolith
  • -Tokens ≠ Knowledge
  • -Traceability
  • -Training Data Contamination
  • -Translation Fidelity
  • -Translation Nuance Loss
  • -Triple Separation
  • -Un-Brain-Rotting
  • -Unanimity Requirement
  • -Undercut
  • -Vannevar Bush
  • -Verification
  • -Verification as Retrieval Practice
  • -Verification System
  • -Zero-Trust Ingestion