06 / ENGINEERING NOTES
Engineering Notes
Long-form notes on AI, engineering systems, and organizational evolution.
Travel Is Not a Checklist: How the Road Keeps Revising My Map of the World
Distance and cities are only traces. What travel truly leaves behind is the repeated collapse of assumptions—and a new understanding of places, people, technology, and myself.
Beyond the Model Race: How I Read the Cross-Pacific AI Chessboard
A systems view of Dimension Capital's China AI memo: how compute scarcity, engineering efficiency, open weights, energy, commercialization, and capital shape the U.S.–China AI landscape.
From AST to Bytecode: Making HHY's Default Engine 2.7× Faster
How I built HHY v1.3.10's Bytecode VM—from the AST semantic baseline, Compiler, and Verifier to Stream Kernels, profiling, cache governance, and a six-runtime performance comparison.
Entanglement, Black Holes, and Qi: Three Conjectures About the Universe and Us
From quantum entanglement and Webb's early-universe surprises to black-hole cosmology, computational reality, and why I believe qi names a genuine dimension of lived experience.
Do Not Build Only One Career: Opportunity Windows, Second Curves, and Continuous Evolution
A career should capture value when personal strengths and market tailwinds overlap, build a second curve before the first one breaks, and preserve choice through continuous learning.
Building a Multi-API Data Collector: Three Sources, One Incremental Table
How I used HHY to collect OpenAlex, Crossref, and GitHub pages concurrently, normalize semantics, isolate failures, and incrementally merge CSV.
Building Asset Governance: Audit Before Effects
How I used HHY to detect risky assets, emit a reviewable action plan, and apply allow-listed remediation through runtime-native dry-run semantics.
Building DataFlow ETL: CSV, JSON, and HTTP in One HHY Flow
How I built a complete HHY pipeline for CSV and JSON ingestion, concurrent profile enrichment, grouped reporting, and atomic dual output.
Building FlowGuard: A CI-Ready Quality Gate in HHY
How I composed filesystem checks, credential scanning, quality commands, HTTP health checks, and atomic reports into a verifiable HHY workflow.
Building HHY Collector Framework Without Starting from a Scrapy Clone
How I combined HHY HTTP, Streams, bounded concurrency, and the official HTML extension into an auditable collector for APIs and static documents.