The Architecture of a Well-Lived Life

 If life is a project, then its success depends on how we allocate our resources toward long-term well-being. Inspired by Yamaguchi Shu’s vision of life design, this post introduces a conceptual framework that connects time, strategy, and various forms of capital to the pursuit of a life that feels unmistakably one’s own—even at its end.


The Architecture of a Well-Lived Life
Modeling Based on 山口周『人生の​経営戦略』​


Entity Name Description
Well-being The sustained state of physical, emotional, and existential fulfillment that defines a meaningful life.
Resources The foundational assets available to a person for achieving well-being.
Time Capital A sub-type of resource representing the finite and invaluable time available for life activities.
Human Capital A sub-type of resource encompassing skills, knowledge, and personal capabilities.
Social Capital A sub-type of resource reflecting the strength and quality of relationships and networks.
Financial Capital A sub-type of resource representing monetary assets and economic decision-making capacity.
Work The domain where time and human capital are invested to produce value and meaning.
High-Level Output The result of leveraging social capital to generate impactful contributions or performance.
Transaction Decision-Making The process of applying financial capital to make choices that affect one’s life trajectory.

A fulfilling life is not built by chance—it’s crafted through conscious allocation of time and capital. When we treat life as a project, every decision becomes a design choice toward well-being.

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