PIONEER OF DECISION EDUCATION

We don't decide for you
We guide you through

Clarify motives, calculate costs, estimate probabilities—make true choices based on your values.

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Curator's Letter

Ichinen Academy is a platform dedicated to Decision Education. We do not teach you what to choose; we help you see the costs, motives, and probabilities behind your choices.

Our content is categorized by real-life scenarios, covering career, finance, family, education, health, and relationships. Every dilemma you face has a corresponding framework here to guide your thinking.

— Founder Yu Jiang · About the author
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Cognitive Bias Arena — Can your intuition survive the test?
6 classic experiments designed by Nobel laureates to stress-test your decision-making machinery. In less than 10 minutes, you'll see your brain in a new light.
6 Challenges3 Nobel Laureates100 Starting Rationality
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Ichinen · Depth Decision Articles

Pioneer of Decision Education

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💼 Career

1 Articles

Job changes, layoffs, entrepreneurship—calculating the real costs of career choices

After 20 Years of Coding, I Realized: The More Powerful AI Becomes, the More I Revere Human Decision-Making
A programmer with 20 years of experience, running concurrent subscriptio…
~ 6 min

💰 Finance

1 Articles

Investments, spending cuts, real estate—uncovering hidden risks and costs

The Three Seconds Before Every Payment Might Be Your Most Valuable Habit This Year
Did you look at your bill last month? Not a superficial glance registeri…
~ 4 min

🏡 Family

6 Articles

Second child, elderly care, marriage—the invisible ledgers of household choices

Under One Roof: The Collision of Two Generations' Default Assumptions
Month One: Your mother cooks a different variety of meals every day. You…
~ 3 min
The Hidden Costs People Posting Their Second Child on Social Media Won't Tell You
When did that thought first pop up? Maybe it was at the mall. Two kids r…
~ 6 min
From "Where to Go" to "What We Want": Your Family Decision-Making Needs a Framework Reset
Have you ever experienced that level of indecision—where you're so confl…
~ 4 min
Turn "It Just Feels Better" into a Decision You Can Discuss
There is a high probability that the following classic dialogue has occu…
~ 5 min
Stop Arguing Over Options: Try High-Value Family Decision-Making Training
Whenever your family faces a "big decision," does it automatically trigg…
~ 7 min
A Single Framework to End Family Arguments Over Dinner: The "Family Decision Desk" Manual
Every weekend at 6:30 PM, countless exhausted families of three with you…
~ 7 min

🌱 Parenting

1 Articles

Anxiety and boundaries—how to let go while remaining responsible

Letting Kids Decide Dinner is Easy; Deciding Who's in Charge Among Three Generations is Hard
Last time, we discussed the macro-framework of multi-generational househ…
~ 5 min

🎓 Education

2 Articles

Grad school, PhDs, exams—the true cost behind educational pathways

Signal Filtering Checklist
On the day the college entrance exam (Gaokao) scores are released, super…
~ 5 min
If You Received a Million-Dollar Offer Tomorrow, Would You Still Want to Pursue a PhD?
During the coldest part of the fall recruitment season, someone is alway…
~ 3 min

🪞 Self

1 Articles

Midlife crisis, imposter syndrome—understanding yourself before choosing

The Truth Behind Extreme Mental Exhaustion: The Fine Line Between "Pursuing Perfection" and "Focusing on the Wrong Priorities"
You definitely know this type of parent (it might even be you): Picking …
~ 4 min

🤝 Social

1 Articles

Toxic relationships, lending money—the decision science of boundaries

Ten Years Grinding in a Tier-1 City: Have You Ever Calculated if It's Actually Worth It?
Another day of overtime until 10 PM. You squeeze onto the last subway, t…
~ 5 min

🧭 Methodology

2 Articles

Core frameworks—making every decision clear and conscious

Did You Install That AI Tool Because You Actually Need It?
Lately, students keep asking me: "Professor, do you use Lobster?" For th…
~ 6 min
A Single Thought: Reclaiming the Clearest Voice
We have reached the point in this series where we have covered over twen…
~ 5 min