Q-Day / Cryptographically-Relevant Quantum Computing — Cryptographic Substrate-Tier Threat to the Settlement Layer + Gated-Capability Bifurcation
In plain terms
R-QDay integrates the Quantum-Impact Deep Research report (30 primary-sourced findings; 4 ACCELERATE / 1-as-divergence / 3 NEWLY-GATE / 6 UNCHANGED across 2027-2040).
Analysis
R-QDay integrates the Quantum-Impact Deep Research report (30 primary-sourced findings; 4 ACCELERATE / 1-as-divergence / 3 NEWLY-GATE / 6 UNCHANGED across 2027-2040). The engine's 2032 collapse is EXPLICITLY a Layer-2 Settlement-Layer event (Report #72: BlackRock's Aladdin algorithm rho->1.0 triggers correlated liquidation transmitted through DTCC's $2.2-3.7Q/yr netting + Euroclear + cross-margining), with crypto_coordination_substrate_candidate as the pre-committed substrate-handoff. Q-Day is therefore the CRYPTOGRAPHIC substrate-tier constraint on that window, added as a 2032 sub-section matching the R93-R98 'Inside 2032 Window' pattern. CAPABILITY: Gidney 2025 (arXiv 2505.15917) factors RSA-2048 in <1 week with <1M noisy qubits (~20x collapse from 2019) via Regev-style reversible Fibonacci uncomputation + yoked surface codes; Willow demonstrates below-threshold dynamic surface codes (exponential error suppression); Google estimates secp256k1 at <=1,450 logical qubits — ECC falls before RSA, so Layer-1 crypto assets break first. Vendor convergence 2028-2030 (IBM Starling 200 logical 2029; Quantinuum 2030; PsiQuantum ~1M photonic 2027; neutral-atoms ~26k physical for P-256). GATING: the $2 billion 9-firm equity (IBM $1 billion 'Anderon' foundry) pre-captures CRQC as a classified state asset — the quantum instantiation of the AI Capability Bifurcation / Compute-Trust Layer. DEFENSE: NIST FIPS 203/204/205, CNSA 2.0 (exclusive PQC by 2030), the Securities and Exchange Commission (SEC) PQFIF, BIS (the Bank for International Settlements) Project Leap (sovereign rails survive; retail/DeFi isolated). HNDL retroactively compromises the 2028 Davidson-window data. The 2032 freeze-vs-crash failure-mode question is parked as a SYNTHESIS-CANDIDATE divergence at the adversarial-test gate — NOT a prediction rewrite. Bound-LLM mediation explicitly held high (Google owns Gemini + Willow + employs Gidney): Google-origin timeline claims weighted at a higher evidence bar. Engine canon preserved: no Layer-1 promotion; Phoenix recursion untouched; Apex (a)/(b)/(c)/(d) held per finding.