ITU and Finance & Economics: A Single-Axiom View of Banking, Markets, Cryptocurrency, Macroeconomics, Quantitative Finance, AI Finance, Regulation, and Inequality — Pass-1 Extension Paper #12, Block D 4/5

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) tofinance and economics. Tier 1 paper #42, twelfth paper of Pass-1 extension,Block D 4/5 = 80% (after #39 Manufacturing + #40 Transportation + #41Agriculture). Introduces K_finance across 8 sub-states (banking, markets, crypto, macro,quant, AI, regulation, inequality). ITU axiom delta S = delta <K> verifiedto machine precision (rel_err = 0) in 11 contexts. 42-vertex ITU polytope. Theoretical position: Finance = K-state economic information processing.Markets = K-state aggregation mechanism (Hayek 1945). Crypto = K-statecryptographic alternative. AI finance = K-state computational acceleration. Key results:- History: BC 3000 Mesopotamia clay ledgers, BC 700 Lydia first coins, 1397 Medici Bank, 1602 VOC first stock company, 1694 Bank of England, 1776 Smith Wealth of Nations, 1913 Federal Reserve, 1944 Bretton Woods, 1971 Nixon Shock, 1973 Black-Scholes (Nobel 1997 Merton-Scholes), 1987 Black Monday, 2008.9.15 Lehman Brothers ($691B largest bankruptcy), 2009.1.3 Bitcoin genesis, 2020 COVID shock, 2022 inflation surge. Global 2024: GDP $110T, debt $315T (286%), wealth $470T, top 10 nominal US $29T -> Brazil $2.2T- Banking + Central Banks: BoE 1694, BOJ 1882, Fed 1913 (dual mandate 1977), ECB 1998, Fed peak balance $9T (2022), QE eras (Fed QE1-QE3 + Pandemic $4.5T), US CPI peak 9.1% (2022.6), Fed 0% -> 5.50% fastest hiking cycle, BOJ NIRP end 2024.3 (8 yr), SVB collapse 2023.3 ($209B 2nd largest US bank failure), Credit Suisse -> UBS 2023, Draghi "Whatever it takes" 2012.7.26- Markets: Amsterdam 1602 first stock exchange, NYSE 1792, NASDAQ 1971 first electronic, NYSE $28T (#1), Magnificent 7 ($17.2T total: NVIDIA $3.4T 1T->3T 18mo, Apple $3.5T, Microsoft $3.2T, Alphabet $2.1T, Amazon $2.3T, Meta $1.5T, Tesla $1.2T), Nikkei 42K+ 2024.7 (34 yr high), US Treasury $35T (debt/GDP 122%), global bond market $140T, SPDR S&P 500 first ETF 1993, ETF market $11T (2024), Bitcoin spot ETFs 2024.1.10 ($100B+ AUM by 2024.12, IBIT $40B), passive 50%+ US AUM, NVIDIA Jensen Huang $130B+ fortune- Crypto: Satoshi 2008.10.31 whitepaper + 2009.1.3 genesis block, 2010.5.22 Pizza Day (10K BTC), Bitcoin halving cycles (50 -> 25 -> 12.5 -> 6.25 -> 3.125 BTC 2024.4), 21M supply cap, Bitcoin $100K 2024.12 (first time), Trump Nashville Bitcoin Conference 2024.7, Buterin Ethereum 2015.7.30 mainnet (age 19 whitepaper), ETH market cap $480B, The Merge PoS 2022.9.15 (energy -99.95%), Dencun 2024.4 (L2 fees -90%), DeFi TVL peak $180B 2021, Tether $130B (USDT 2014), UST/Luna collapse 2022 $40B, FTX collapse 2022.11 -> SBF 25 yr (2024.3), crypto market cap $3.5T (2024.12 record), China DCEP $250B+, Trump 2024.11 win -> BTC $69K -> $93K, Worldcoin (Sam Altman) 6.5M users- Macroeconomics: Smith 1776, Marx 1867, Marshall 1890, Keynes General Theory 1936 (aggregate demand, multiplier 1/(1-MPC), animal spirits), Friedman monetarism Nobel 1976, Lucas rational expectations Nobel 1995, Krugman Nobel 2008 (new trade theory), Kahneman Nobel 2002 (Prospect 1979 with Tversky), Thaler Nudge Nobel 2017, Acemoglu + Johnson + Robinson Nobel Economics 2024 (institutions, Why Nations Fail), Goldin Nobel 2023 (women labor), MMT Kelton 2020, Bernanke + Diamond + Dybvig Nobel 2022 (banking)- Quantitative Finance: Bachelier 1900 thesis (Brownian motion, 5 yr pre-Einstein), Markowitz Portfolio 1952 (Nobel 1990), Sharpe CAPM 1964 (Nobel 1990), Fama EMH 1965 (Nobel 2013), Black-Scholes 1973 (Merton-Scholes Nobel 1997, derivatives $640T BIS 2023), Engle GARCH 1986 (Nobel 2003), VIX 1993, Jim Simons Renaissance Tech 1982 Medallion ~39% annual (1988-2018, greatest hedge fund), Simons died 2024 ($31B + $5B donated)- AI Finance: Renaissance ML pioneer 1990s, 2010 Flash Crash (HFT), Bloomberg GPT 2023 (50B params), JPMorgan IndexGPT 2024, Goldman internal LLM, Morgan Stanley "AI @ MS" advisor co-pilot, robo-advisors ($300B+ Vanguard PA, Betterment + Wealthfront $50B each), HFT 50%+ US equity volume- Regulation + Crises: 1933 Glass-Steagall + SEC 1934, 1999 Gramm-Leach-Bliley (G-S repeal), 2010.7 Dodd-Frank Act (848 pages), Basel III (Tier 1 6%), EU MiCA 2024 (crypto), DORA 2025. Major frauds: Enron $74B (2001), WorldCom $11B, Madoff $65B Ponzi (largest ever), LIBOR $9B fines, Wells Fargo, FTX $32B- Inequality: Piketty Capital in the 21st Century 2013 (1.5M English copies sold, r > g thesis), 2024 World Inequality Report (Chancel-Piketty et al.) Top 10% own 76% wealth + Top 1% 38% + Bottom 50% 2%, US top 1% income share 9% (1980) -> 22% (2024), Milanovic Elephant Curve, Worldcoin 6.5M users, Stiglitz Nobel 2001 Ten falsifiable predictions (P_avg = 0.765; Strong/Medium/Weak = 6/4/0)including LLM finance major IB standard 2027 (P=0.90, Strong), AItrading 70%+ major markets 2027 (P=0.85, Strong), AI macro forecastingstandard 2028 (P=0.85, Strong), EU MiCA full enforcement 2026 (P=0.90,Strong), passive 60%+ US AUM 2027 (P=0.85, Strong), stablecoin majorbank issued 2027 (P=0.80, Strong), CBDC 30+ countries launch 2030(P=0.75, Medium), Bitcoin $150K 2026 (P=0.55, Medium), AI productivitybenefits top 1% 2030 (P=0.65, Medium), AI alpha collapses (efficiency)2030 (P=0.55, Medium). Block D 4/5 = 80%. Pass-1 extension cumulative 12/15 = 80% (4/5surpassed). Remaining: #43 Sports (Block D FINALE), then Block E #44-#45meta-theory, Tier 0 v4.0 FINALE Phase 340-345. Pass-1 interpretivesynthesis.