∏ Hₜ = H₁ · H₂ · H₃ ⋯ Hₜ
HtPi reads as the Pi of Hₜ. ∏ is the product operator — the twin of the summation sign Σ. Where Σ adds, ∏ multiplies; where addition accumulates, multiplication compounds.HtPi 讀作「Hₜ 的乘積」。∏ 是乘積符號——加總符號 Σ 的孿生兄弟。Σ 相加，∏ 相乘；相加是累積，相乘是複合。
The subscript t is an index of time — H, for Horris, evolving across a series. Taken together, ∏Hₜ is one person's knowledge, multiplied through time, until it becomes a school of its own.下標 t 是時間的索引——H，也就是 Horris，在一條時間序列上不斷演化。合而觀之，∏Hₜ 便是一個人的知識歷經時間層層複合，終至自成一派。
Add knowledge together and it grows — but linearly. Each field stays in its own column, useful and separate.知識疊加只是線性增長。每個領域各據一欄，有用，卻彼此分離。
Multiply it and it compounds — fields fold into one another and take on a form none could reach alone.知識複合，各領域彼此交融，成形為任何單一領域都無法獨自抵達的樣貌。
Data Science & Technology Consultant · Hong Kong數據科學與科技顧問 · 香港
I work where finance, data and design meet — and twenty years in, I'm more certain than ever that the interesting things live at the confluence, not in any single channel.我在金融、數據與設計交匯之處工作——二十年下來，我愈發確信，有意思的東西總在匯流之處，而非任何單一流域之中。
I started programming at six and never really stopped. That turned into a data scientist (MS, Applied Data Science, University of Michigan; GARP Certificate in AI & Risk) and a technology consultant — advising startups and institutions on AI infrastructure, ML pipelines and data architecture. I founded AISU, Hong Kong's first AI organisation, to help push the city's AI scene forward. These days I'm the founder of WeMine Labs; beyond advising several companies, I also lecture at different institutions from time to time. Earlier, I worked across AXA, Telstra International, and the Thomson Reuters–Systex venture.我六歲就開始寫程式，一路寫到現在。後來成了數據科學家（密歇根大學應用數據科學碩士、GARP 人工智能與風險證書），亦同為科技顧問——為初創與機構提供 AI 基礎建設、機器學習流程與數據架構的建議。我創辦過 AISU，香港第一個 AI 組織，在當年推動本地的 AI 發展。現為 WeMine Labs 創辦人；如今除了在多家機構擔任顧問，也不時於不同院校講課。過往則曾在 AXA、Telstra International，以及 Thomson Reuters 與 Systex 的合資項目任職。
HtPi is the open lab beside that work — where the same habits of mind (distil, recompose, compound) turn toward everything else.HtPi 則是一座開放的實驗室——在這裡，我把提煉、重組、複合這套思維習慣，用到其他一切事物上。
I like to distil the myriad things into their essentials, then recompose them. Curiosity is the start; compounding is the process; synthesis is the result.我喜歡把萬象提煉為本質，再重新組合。始於好奇，繼於複合，走向融會貫通。
海納百川，自乘一派
A Product of Confluence