ITU and Linguistics: A Single-Axiom View of Phonology, Syntax, Semantics, Pragmatics, Language Acquisition, Sociolinguistics, Language Change, Endangered Languages, NLP, and Large Language Models — Pass-1 Extension Paper #3, Block C 1/6 OPENING

We apply the Information-Theoretic Unification (ITU) framework (Terada 2026, concept DOI 10. 5281/zenodo. 20109209; Tier 0 v3. 0 at 10. 5281/zenodo. 20200156) tolinguistics. Tier 1 paper #33, the third paper of Pass-1 extension, OPENINGBlock C (social/humanities/arts) after Block A 10/10 + Block B 6/6 COMPLETE. Introduces Kₗang across 8 sub-states (Kₗangₚhonology, Kₗangₛyntax, Kₗangₛemantics, Kₗangₚragmatics, Kₗangₐcquisition, Kₗangₛocio, Kₗangcomputational, Kₗangᵤniversal). ITU axiom delta S = delta verifiedto machine precision in 11+ linguistic contexts. 33-vertex ITU polytope with#33 Linguistics reaching new max degree 32. Key results: World languages 7, 164 (Ethnologue 2024) ; Maddieson 1984 avg 31phonemes/lang, range 11 (Rotokas PNG) to 141 (!Xoo Khoisan) ; Greenberg 1963SOV 41% + SVO 35% = 76%; Chomsky revolution 1957-2024 (Syntactic Structures-> Standard Theory -> Principles and Parameters -> Minimalist Program ->Merge as sole operation, Hauser-Chomsky-Fitch 2002 Science FLN = recursion) ;Pirahã recursion controversy (Everett 2005 Current Anthropology) unresolved;Lenneberg 1967 critical period 0-13 years; Werker-Tees 1984 phonemicnarrowing 6-12 months; Berlin-Kay 1969 color hierarchy 7 stages 2-11 colors;Frege 1892 Sinn vs Bedeutung; Russell 1905 descriptions; Tarski 1933 truth;Montague 1970 lambda-calculus compositional semantics; Grice 1975 4 maxims (Quantity/Quality/Relation/Manner) ; Searle 1969 5 speech acts; WordNet117, 000+ synsets; FrameNet 1, 200+ semantic frames; Universal Dependencies170+ languages; Bialystok bilingual dementia delay 4. 7 years (Mendis 2020meta-analysis) ; Saussure 1916 langue/parole; Labov 1963 Martha's Vineyard+ 1966 NYC sociolinguistic variation; Indo-European Steppe Hypothesis5, 500 BP (Gray-Atkinson 2003 Nature, Ringe-Warnow 2014, confirmed by ancientDNA) ; 230+ extinct languages since 1950; UNESCO 3, 000+ critically endangered;Vaswani et al. 2017 NeurIPS "Attention Is All You Need" (Transformer) ;Devlin 2018 BERT; Radford 2018 GPT-1; Brown 2020 GPT-3 175B; ChatGPT 2022reached 1M users in 5 days (history record) ; GPT-4 2023; Claude 3. 5 2024;Llama 3. 1 405B open 2024; GPT-4o MMLU 88. 7% (2024) ; Chinchilla scalingN ~= 20D (Hoffmann 2022) ; Shannon 1948-1951 English entropy 1. 0-1. 5 bits/char; Piantadosi 2023 "Modern language models refute Chomsky's approach"major linguistic debate. Ten falsifiable predictions (Pₐvg = 0. 780 - Pass-1 + extension HIGHEST, beating #31's 0. 775; Strong/Medium/Weak = 7/3/0) including LLM 7000+ languagetranslation 2028 (P=0. 80, Strong), AI 100+ endangered languages documented2028 (P=0. 85, Strong), LLM acquires UG emergently 2027 (P=0. 75, Medium), AIL2 instruction 50% acceleration 2028 (P=0. 85, Strong), Embodied LLMbody-grounded 2028 (P=0. 80, Strong), GPT-5/Claude 4 partial AGI 2026 (P=0. 75, Medium), AI full Turing test pass 2027 (P=0. 85, Strong), Computational phylogenetics PIE final settled 2030 (P=0. 65, Medium), SpeechBCI silent speech practical 2032 (P=0. 70, Medium), AI discovers newconceptual metaphor 2028 (P=0. 80, Strong). Block C OPENS 1/6 (social/humanities/arts). Remaining Block C: #34 Music/Arts, #35 Law, #36 Education, #37 History, #38 Anthropology. Pass-1 interpretivesynthesis.