Technical thinking
and practice.

做完五十年的工程工作後，發現自己還有一件事想完成。為律師事務所、醫療機構與政府機關開發完全安全的訊息整合系統。

In the 1990s, I decomposed systems and assigned them to graduate engineers without written specifications — driven by debate, not documentation. What is now called vibe coding, I was doing with humans.

Decisive results come from the far right tail of the distribution — not from average excellence. On finding the exceptional in the unranked majority, and why AI widens the gap further.

When everything is gone, only one key still works. Why memory is the most important — and most demanding — security protocol in existence.

Most IT operations assume the network perimeter is the boundary. It is not. A server is only secure when it remains protected even after someone touches it.

Life is governed by intellect, shaped by probability, and constrained by chance. This is not a metaphor. It is a structural description.

台語的變調與鼻音，若視為喉嚨、下顎與頭部的協調運動，比記憶音高規則更有效率。成人學習者的實踐模型。

Originally implemented in the 1990s with sendmail aliases. Rewritten for modern requirements: HMAC-SHA256, deterministic generation, lowercase Base32, URL normalisation.

Deterministic network architectures built on open standards. Headscale for small deployments, BGP-native routing beyond that. No proprietary control planes.

A design that does not assume the cloud trust model. Cloud administrators, hypervisors, and forensic analysts are all defined as adversaries. AMD SEV-SNP, vTPM, attestation.

Go and Rust improve how systems behave under execution. OCaml improves what systems are allowed to do. For capital transfer, semantic safety must take precedence.

Capital should move with the same precision, speed, and reliability as code. A CLI-based USDT/USDC transfer system designed as deterministic and auditable infrastructure.