english

⑧ 社会・制度の前提 Society & System Assumptions

Son, Know This: Women Have a Biological Clock

There is something I want you to understand as you grow older.Men often think they have time.They think things like marr...
① 思考の前提 Assumptions of Thinking

To My 15-Year-Old Son

My father died suddenly. Years later I survived a brain hemorrhage. Both times, one thing saved our family: an emergency fund. This is the story I want my son to understand.
① 思考の前提 Assumptions of Thinking

To My 15-Year-Old Son

A personal letter to my 15-year-old son about what my mother taught me about life, money, sacrifice, and designing a life strong enough to protect the people you love.
③ お金の前提 Money Assumptions

To My 15-Year-Old Son Never Borrow the Maximum for a House

A mother explains to his 15-year-old son why borrowing the maximum mortgage is dangerous. A lesson about freedom, financial design, and long-term thinking.
③ お金の前提 Money Assumptions

Life Is Decided by Structure, Not Income

Does a higher income guarantee freedom? Not necessarily. This article explains why life outcomes are determined more by financial structure—fixed costs, emergency funds, and margin—than by income alone.
③ お金の前提 Money Assumptions

Two-Layer Personal Financial Design

Most couples focus on shared finances, but real financial resilience requires two layers: household design and personal financial design. Learn how an emergency fund protects life when income suddenly stops.
① 思考の前提 Assumptions of Thinking

Stepping Off the Line

Why do we follow the same life path as everyone else? This essay explores conformity, social pressure, debt, and the myth of “normal,” and why independent thinking matters more than ever.
① 思考の前提 Assumptions of Thinking

Stepping Off the Line | Episode 6

Should parents give their children answers or questions? This essay explores why the most valuable thing we can pass to the next generation is not certainty, but the ability to think and choose for themselves.
② 人生設計の前提 Life Design Assumptions

Electricity on a Boat: How We Manage Power While Living on a Catamaran

How does electricity work on a liveaboard boat? A real example of solar power, battery management, and daily energy decisions on a catamaran.
1 前提 構造 世界 Assumptions / Structure / World

Vanity Steals Freedom

Vanity is not a flaw. It’s a survival instinct. But in modern finance, lifestyle inflation silently kills compound growth. Here’s why freezing your ego is the key to real freedom.