EditorialPersonal Essays11 Nov 20261 minsample
Why Hansei Dev Exists
A record kept honestly is more useful than a story told well.
Sunday, 15 November 2026Journal · Knowledge · Projects · EditorialsVol. 01
反省 — Hansei, the practice of honest reflection
An ongoing study in human development.
A living archive of ideas, experiments, research and personal evolution — across technology, science, philosophy, faith and life.
FeaturedJournalHabits & Discipline8 Nov 20261 minsample
The Discipline of Starting Again
EditorialSociety4 Nov 20261 minsample
Geography as a Framework for Understanding the World
01Selected writing
All editorials →02 — Knowledge Atlas
Knowledge is a network, not a shelf.
Each discipline is mapped to the ones it depends on and leads to — geography to statistics, statistics to data science, data science to AI.
Explore all disciplines →Geography & Global SystemsLearning
Geography
How place, space and movement shape human outcomes.
Geography & Global SystemsExploring
GIS
Geographic information systems and spatial analysis.
Mathematics & Quantitative StudiesLearning
Statistics
Reasoning under uncertainty.
Mathematics & Quantitative StudiesExploring
Research Design
How to ask questions that data can actually answer.
Technology & ComputingLearning
Data Science
Turning data into decisions.
Technology & ComputingLearning
Artificial Intelligence
Machine learning, language models and agentic systems.
03Currently building
All projects →In progress13 Nov 2026
Hansei Dev Platform
This site: a publication, knowledge atlas and portfolio on one content model.
TypeScriptReactTanStack StartPostgreSQLsample
Planned13 Nov 2026
Coastline Distance Study
Planned: a small spatial analysis relating city distance-to-coast with economic indicators.
PythonGeoPandasQGISsample
04Development journal
View all →- 8 Nov 2026The Discipline of Starting Again
Personal Optimisation
- 24 Oct 2026Reflections on Language, Culture, and Identity
Culture & Observations
05Research & notes
View all →Research NoteStudy Logs1 Nov 20261 minsample
Building a Personal Knowledge System
Notes are only useful if they can find each other.
Research NoteResearch Notes29 Oct 20261 minsample
Research Design and the Problem of Bad Data
Most analytical errors are made before the first line of analysis.
06 — The long read
Geography as a Framework for Understanding the World
Where something happens is rarely incidental to why it happens.
Read the essay →07 — About
Hansei Dev documents one person's attempt to become more capable — intellectually, technically, physically and spiritually — through deliberate learning and honest review.
It is not advice. It is a record: what was tried, what was learned, what failed and what comes next. Personal observation is kept separate from established evidence, and nothing is marked as mastered until there is work to show for it.