Human Language Is Not a Final Output, It Is a Primitive Switch
The Origin of Language via Biological Inverse Problem and 5 Missing Links in AGI
1. Introduction: Paradigm Shift in Viewing Language
We often regard language as a 'final layer' added to the very top of a fully evolved organism. However, looking across the entire Tree of Life reveals a radically different perspective. Microbial quorum sensing[1], plant volatile and electrical signaling, fungal mycelial networks, animal vocal and gestural communication, and human symbolic language—all of these are observable data from living organisms at this very moment.
Although primitive genes and early cells from billions of years ago are buried and gone, the communication substrate they utilized is still being spoken through living bodies. Language is not a decorative ornament of a finished organism, but a 'readable surface' from which the deep, unobservable origins of life can be reconstructed.
This essay formulates an 'inverse problem': recovering the primitive substrate and evolutionary trajectory from cellular chemical "words" to human recursive language based on observable communication across life. Furthermore, it outlines an engineering roadmap for Large Language Models (LLMs) to overcome current limitations and advance toward true Artificial General Intelligence (AGI).
2. Biological Inverse Problem: The Shared Root and Point of Disruption
What is the conserved root underneath all biological communication? It is none other than the receiver's 'discretizing threshold-gate'. This is a ligand/voltage-gated toggle mechanism that converts continuous changes in environmental chemical concentration or voltage into a discrete act[1].
Where does the analogy between a microbe's signal and a human word hold, and where does it snap? The snapping point is precisely 'displacement'[2].
- Microbial Gate: Responds strictly to the concentration of stimuli present 'here and now'.
- Human Language: Refers to absent objects, past memories, future imaginations, and abstract concepts.
The moment a gate begins pointing at an 'absent referent' rather than present physical concentration, communication leaped from microbial signaling to human language.
The path to human recursive language was not caused by a single miraculous gene, but is the result of an ordered 8-stage stack of gate-innovations built sequentially upon the primitive threshold-gate:
- Displacement: Pointing at an absent referent instead of present concentration.
- Two-plus Independent-noise Registers: Separating environmental noise from internal noise to ensure signal reliability.
- Motor-intervention: Direct involvement of motor mechanisms in signal control to construct active feedback.
- Discretization into a Stable Alphabet: Structuring ambiguous continuous signals into clear, stable discrete units (phonemes/symbols).
- Cross-individual Threshold-alignment: Sharing threshold criteria for triggering switches across different individuals.
- Constituted / Non-tracking Reference: Referencing artificially declared rules and conventions beyond physical tracking.
- Continuous Re-grounding: Dynamically re-aligning symbolic meanings with reality in changing contexts.
- Norm-tracking Syntax: Constructing a final syntactic framework that tracks and controls normativity and contextual validity.
3. AGI through the Biological Stack: LLM's 5 Missing Links and Engineering Solutions
This 8-stage gate model precisely diagnoses the structural limitations of current LLM-centric AI research.
Current LLMs merely mimic Stage 1 (Displacement), Stage 4 (Token Discretization), and Stage 8 (Syntactic Pattern Tracking) on the surface[2], [3]. Having trained only on text output, the core middle stages (2, 3, 5, 6, 7) that biological cognitive stacks refined over billions of years are entirely missing.
[Current LLM Architecture] Stage 1 (Displacement) ──> [Missing Stages 2 & 3] ──> Stage 4 (Tokenization) ──> [Missing Stages 5, 6, 7] ──> Stage 8 (Syntax) [Complete Evolutionary Stack for AGI] 1.Displacement ➔ 2.Noise Registers ➔ 3.Motor Intervention ➔ 4.Discretization ➔ 5.Threshold Alignment ➔ 6.Constituted Reference ➔ 7.Re-grounding ➔ 8.Norm Syntax
① Missing Stage 2: Independent Noise Registers
- Diagnosis: LLMs cannot structurally separate external prompt noise from internal reasoning memory, making them vulnerable to hallucinations when inputs are corrupted.
- Engineering Solution: Implement a multi-register memory architecture that independently filters environmental noise from internal computing states.
② Missing Stage 3: Active Motor Intervention
- Diagnosis: AI operating purely in text space lacks embodiment, failing to comprehend physical consequences and feedback loops in the real world.
- Engineering Solution: Build Embodied AI integrating robotics or agentic action-perception loops.
③ Missing Stage 5: Cross-individual Dynamic Threshold Alignment
- Diagnosis: RLHF merely aligns outputs to static guidelines, failing to align dynamic thresholds of common sense during real-time interaction.
- Engineering Solution: Develop a Shared Intentionality Protocol that dynamically calibrates reaction thresholds between AI and humans.
④ Missing Stage 6: Constituted / Non-tracking Reference System
- Diagnosis: LLMs only 'track' statistical correlations in data. They cannot autonomously constitute and hold onto non-tracking references like laws or mathematical axioms.
- Engineering Solution: Combine LLMs with a Symbolic Anchoring and Axiomatic Reasoning Engine that fixes rules and definitions as hard constraints.
⑤ Missing Stage 7: Continuous Real-Time Re-grounding
- Diagnosis: AI tokens remain trapped in static training data space, severed from an ever-changing physical reality.
- Engineering Solution: Embed a Dynamic Re-grounding Loop processing real-time multimodal sensor streams.
4. Conclusion: A Paradigm Shift toward AGI
Language is not the 'cause' that creates intelligence; it is the 'final result' built over 8 meticulous stages as primitive physical switches clashed with the environment over billions of years.
The evolutionary path revealed by biological inverse engineering—independent noise separation, motor intervention, threshold alignment, constituted reference, and continuous re-grounding—serves as the definitive engineering roadmap for AI to transcend mimicry and achieve true AGI.
References
- Waters, C. M., & Bassler, B. L. (2005). Quorum sensing: cell-to-cell communication in bacteria. Annual Review of Cell and Developmental Biology, 21, 319-346.
- Hauser, M. D., Chomsky, N., & Fitch, W. T. (2002). The faculty of language: what is it, who has it, and how did it evolve?. Science, 298(5598), 1569-1579.
- Jackendoff, R. (1999). Possible stages in the evolution of the language capacity. Trends in Cognitive Sciences, 3(7), 272-279.
- Harnad, S. (1990). The symbol grounding problem. Physica D: Nonlinear Phenomena, 42(1-3), 335-346.
- Friston, K. (2010). The free-energy principle: a unified brain theory?. Nature Reviews Neuroscience, 11(2), 127-138.
An Seungwon / Wonbrand / https://wonbrand.co.kr
