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Systems / Decisions
Work & Learning
Turn complexity into decisions people can use.
Cornell MEng and NUS MiM shape the lens. Kopi & Co puts it to work: a transparent Monday decision system for a 42-outlet café network.
Enter Work & LearningRonaldo Li · Personal Digital HQ
One mind. Four signals.
Systems, strategy, and stories—four ways of paying closer attention to how things work.
SIGNAL CORE RONALDOLI.COM
01Jinglin Li / 李京霖
02Systems / Strategy / Stories
03ronaldoli.com
04TheFakerShy
Connecting thesis
Different fields. The same instinct to understand.
Systems show what connects. Strategy reveals where to move. Stories make the answer worth remembering.
01—04 / Signal system
Four signals. One connected way of thinking.
One mind / Four lenses
Selected threads / 03
Questions worth following further.
010203
Open the complete signal atlasKopi & Co
Three outlets. One Monday decision.
An academic prototype connecting transparent rules, outlet evidence, and a clear weekly operating choice.
Formula 1
The cost of a stop.
Hungary 2019, a strategic trade-off, and a hands-on experiment in the time it takes to catch.
Gaming
Prepared, still uncertain.
A real FFXIV fishing story, layered opportunity, and an experiment in the difference between preparation and luck.
BACK TO THE ORIGINALS / OPEN THE WORK
A few lines on a CV can open into a longer story.
Reports and plans from Cornell preserve specific designs, assumptions and open questions. I have revisited that material in these notebooks, with experiments you can try.
CUSD / 2022–2023
How does a school respond to its community?
Read the individual plan alongside two team reports: water, gardens, classrooms and requirements.
Open the notebook ↗CORNELL / CITY SYSTEMS
How do we compare choices in a city?
Greenway candidates, bike stations and district branding connect models with experience and information.
Open the notebook ↗BON APPÉTIT / SYSEN 5930
What tells us a project is progressing?
Start with my cost-management chapter, then compare planned work, completed work and spend.
Open the notebook ↗LJL / DECISION THEATRE
Your turn to make the call.
Take a Monday meeting brief. Choose a focus, open the evidence and decide what comes next. Then return to the original work and inspect the reasoning.
Three sample outletsFive stagesNo account needed
Enter the Kopi episodeEpisode 02: the sequence before handoff ↗Read the case and source first ↗Another angle / Meet the person
Start with the side that interests you.
Background, interests and ways of thinking, brought into focus.
Prefer a route shaped around your interests?
Choose a personal tour ↗From understanding to participation / Three ways in
Life field notes
A wider aperture.
Long walks in Singapore, a practical dinner plan and a classroom tower that reached 21 cm.
What do I want to build with stronger tools?
Two questions from a NUS guest-speaker session on 22 October, revisited while continuing this website.
Leave room for the reply.
Two moments in October: a question in a NUS classroom, and a small change I began to notice in group conversations.
Ask what the data can answer.
After the Kopi presentation, I returned to the three management questions behind our three screens.
S$25 to S$20. What changed besides the price?
A bag, two buyers and a conversation after class. Looking back at a small negotiation in Bugis on 5 March 2026.
Now / 16 October 2026
Current coordinates
- Learning
- Management at NUS
- Building
- This Personal Digital HQ
- Following
- Formula 1
- Playing
- Final Fantasy XIV and current games
Personal journey
A route, not a résumé.
Each place widened the frame: new disciplines, new questions, and a different way to see the whole.
- 01Moreau CatholicCalifornia
- 02Indiana UniversityBloomington
- 03CornellIthaca
- 04NUSSingapore
Open channel
Ideas travel further in good company.
For professional conversations, find me on LinkedIn. For projects and code, follow my public GitHub profile.
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