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Use AI to Write Better, Not Less

Use AI to Write Better, Not Less

Mar 19, 2026
Coaching Philosophy

Coaching Philosophy

Mar 13, 2026
The Role of Specs in the Claude Code Era

The Role of Specs in the Claude Code Era

Mar 10, 2026
AI Agents Are Competing on "Where" They Live

AI Agents Are Competing on "Where" They Live

Mar 02, 2026
The Future Where E-Commerce Gets AI-Aggregated

The Future Where E-Commerce Gets AI-Aggregated

Feb 17, 2026
Developing Children's Physical Capacity

Developing Children's Physical Capacity

Feb 12, 2026
It's Okay to Feel Anxious

It's Okay to Feel Anxious

Feb 06, 2026
Vanguard and Rearguard

Vanguard and Rearguard

Feb 03, 2026
Building a Newsletter Feature with Cursor Subagents

Building a Newsletter Feature with Cursor Subagents

Jan 28, 2026
Compound Management — The B-Side

Compound Management — The B-Side

Jan 06, 2026
Best Purchases of 2025

Best Purchases of 2025

Dec 21, 2025
The Paradigm Shift of Nations That Built a Thick Middle Class

The Paradigm Shift of Nations That Built a Thick Middle Class

Dec 10, 2025
I Implemented RSS Feeds

I Implemented RSS Feeds

Sep 12, 2025
I Rebuilt the Site with Vibe Coding

I Rebuilt the Site with Vibe Coding

Sep 01, 2025
AI Doesn't Increase Your Input

AI Doesn't Increase Your Input

May 12, 2025
I Built a Tool to Convert Notion DBs to Google Docs

I Built a Tool to Convert Notion DBs to Google Docs

Apr 05, 2025
My AI Use Cases

My AI Use Cases

Feb 20, 2025
If I Had to Pick One Issue for This Country

If I Had to Pick One Issue for This Country

Feb 16, 2025
Best Purchases of 2024

Best Purchases of 2024

Jan 05, 2025
Best Purchases of 2023

Best Purchases of 2023

Dec 29, 2023
Technical Debt

Technical Debt

Dec 28, 2023
The Journey Toward Becoming a Platform

The Journey Toward Becoming a Platform

Dec 25, 2023
My Grandmother and Me

My Grandmother and Me

Sep 18, 2023
Reading Instacart's S-1

Reading Instacart's S-1

Sep 01, 2023
May 5, 2023

May 5, 2023

Jun 26, 2023
Sending Data to Slack in 2023

Sending Data to Slack in 2023

Apr 19, 2023
2023 Is the Year of PMF

2023 Is the Year of PMF

Jan 04, 2023
Taking Autonomy Seriously

Taking Autonomy Seriously

Dec 31, 2022
Best Purchases of 2022

Best Purchases of 2022

Dec 29, 2022
Thoughts on Compound Startups From a Founder's Perspective

Thoughts on Compound Startups From a Founder's Perspective

Dec 03, 2022
The Enterprise Platform

The Enterprise Platform

Nov 06, 2022
What Is Integrity?

What Is Integrity?

Oct 30, 2022
12 Months of a CEO Wrestling with People and Organization

12 Months of a CEO Wrestling with People and Organization

Oct 03, 2022
Whole Product and Platform

Whole Product and Platform

Aug 11, 2022
How 10X Operates Its Product Roadmap

How 10X Operates Its Product Roadmap

Jul 30, 2022
What Features Should Stailer Build?

What Features Should Stailer Build?

Jul 03, 2022
What Kind of "Platform" Will Stailer Become?

What Kind of "Platform" Will Stailer Become?

Jun 05, 2022
We Updated the 10X Values

We Updated the 10X Values

Feb 14, 2022
yamotty Moves to Osaka

yamotty Moves to Osaka

Jan 17, 2022
10X and Me — 2021

10X and Me — 2021

Dec 29, 2021
10 Things Worth Paying For in 2021

10 Things Worth Paying For in 2021

Dec 24, 2021
Three Chips to Enrich Your Life

Three Chips to Enrich Your Life

Dec 16, 2021
Parenting and Starting a Startup

Parenting and Starting a Startup

Oct 26, 2021
The Art of Staying for the Long Haul

The Art of Staying for the Long Haul

Oct 05, 2021
We Temporarily Relocated Our Family to the Countryside

We Temporarily Relocated Our Family to the Countryside

Aug 31, 2021
A Model for Delegation — How to Delegate

A Model for Delegation — How to Delegate

Aug 24, 2021
The COO Person Is Here

The COO Person Is Here

Jul 27, 2021
[Translation] Why We Prefer Founding CEOs

[Translation] Why We Prefer Founding CEOs

Jul 20, 2021
[Translation] Why Founders Fail: The Product CEO Paradox

[Translation] Why Founders Fail: The Product CEO Paradox

Jul 15, 2021
How I Met Autify CEO Chikasawa-san

How I Met Autify CEO Chikasawa-san

Jul 08, 2021
Why e-Grocery Matters

Why e-Grocery Matters

Jun 29, 2021
Failures After Starting Up — What I Learned

Failures After Starting Up — What I Learned

Jun 24, 2021
Grab's Investor Presentation

Grab's Investor Presentation

Jun 20, 2021
What Does It Mean to "Handle Complexity Without Simplifying It"?

What Does It Mean to "Handle Complexity Without Simplifying It"?

Jun 17, 2021
My Current Thinking on Moats

My Current Thinking on Moats

Jun 13, 2021
CEO/Org 360° Review #2 (March 2021)

CEO/Org 360° Review #2 (March 2021)

Apr 25, 2021
Individuals and Companies — Building a Truly Long-Term Relationship

Individuals and Companies — Building a Truly Long-Term Relationship

Mar 28, 2021
How I Think About Daily Performance

How I Think About Daily Performance

Feb 13, 2021
Looking Into Paul Davison — Clubhouse's Founder

Looking Into Paul Davison — Clubhouse's Founder

Jan 29, 2021
My First Impressions of Clubhouse

My First Impressions of Clubhouse

Jan 25, 2021
Aiming Only at Discontinuity

Aiming Only at Discontinuity

Jan 02, 2021
Building a Document System with Notion

Building a Document System with Notion

Dec 26, 2020
10 Things Worth Buying in 2020

10 Things Worth Buying in 2020

Dec 24, 2020
How We Handle Customization Requests

How We Handle Customization Requests

Nov 12, 2020
I Got a CEO 360° Review #1 (September 2020)

I Got a CEO 360° Review #1 (September 2020)

Sep 13, 2020
10X's Next Stage

10X's Next Stage

Aug 28, 2020
From Tabery to Stailer

From Tabery to Stailer

Jun 15, 2020
Finding and Betting on the Assumptions That Are About to Change

Finding and Betting on the Assumptions That Are About to Change

May 04, 2020
Consumer Co-ops in Japan and the State of Their EC Transition

Consumer Co-ops in Japan and the State of Their EC Transition

Apr 21, 2020
Partnering with Enterprises for Innovation (Translation)

Partnering with Enterprises for Innovation (Translation)

Mar 24, 2020
The Inequality We Create: A Book Review

The Inequality We Create: A Book Review

Mar 02, 2020
Co-Founders

Co-Founders

Jan 29, 2020
Why OMO Happened

Why OMO Happened

Dec 19, 2019
Unpacking the History of Online Retail

Unpacking the History of Online Retail

Dec 12, 2019
Alignment of Strategy and Implementation

Alignment of Strategy and Implementation

Dec 07, 2019
The Technology That Drove Offline Retail

The Technology That Drove Offline Retail

Nov 12, 2019
The Founder Who Doesn't Give Up

The Founder Who Doesn't Give Up

Jul 19, 2019
What Does True Openness Mean?

What Does True Openness Mean?

Jul 07, 2019
Building a 10X Product

Building a 10X Product

May 14, 2019
Risk Segmentation and a Culture of Testing

Risk Segmentation and a Culture of Testing

Feb 28, 2019
On Loving

On Loving

Jan 26, 2019
The Real Product-Market Fit (Translation)

The Real Product-Market Fit (Translation)

Jan 09, 2019
Censoring is Day One

Censoring is Day One

Dec 13, 2018
Designing Evaluation for Maximum Throughput

Designing Evaluation for Maximum Throughput

Nov 21, 2018
Constraints and Vows

Constraints and Vows

Sep 12, 2018
Live in the Future, Build What's Missing

Live in the Future, Build What's Missing

Sep 03, 2018
Three Books That Represent 10X's Values

Three Books That Represent 10X's Values

Aug 07, 2018
The Roots of Product Management

The Roots of Product Management

Jul 06, 2018
The Space Values Need

The Space Values Need

Jun 24, 2018
Leadership With Obsession

Leadership With Obsession

Jun 09, 2018
Using Dropbox Paper

Using Dropbox Paper

Jun 07, 2018
Short-Time Startup

Short-Time Startup

May 29, 2018
What Is "Zero-Thought"?

What Is "Zero-Thought"?

May 21, 2018
The Story Behind Building "Sukusho Keshi"

The Story Behind Building "Sukusho Keshi"

May 05, 2018
Tools for Building Relationships with Customers

Tools for Building Relationships with Customers

Mar 24, 2018
Times Car Share's Competitive Advantage

Times Car Share's Competitive Advantage

Mar 15, 2018
Tabery "Group Sharing" Feature Spec

Tabery "Group Sharing" Feature Spec

Jan 30, 2018
Day One

Day One

Dec 30, 2017
Thinking About Competitive Moats

Thinking About Competitive Moats

Nov 25, 2017
How to Get Startup Ideas (Translation)

How to Get Startup Ideas (Translation)

Nov 23, 2017
Sketching an Organization Design

Sketching an Organization Design

Aug 18, 2017
Summary of "A Guide to MARKETPLACES"

Summary of "A Guide to MARKETPLACES"

Apr 17, 2017
What a Good Team Is Not

What a Good Team Is Not

Jan 20, 2017
The Plateau Problem in Management

The Plateau Problem in Management

Dec 28, 2016
Enjoy the Journey — Wholeheartedly

Enjoy the Journey — Wholeheartedly

Dec 13, 2016
How My Career in Product Management Began

How My Career in Product Management Began

Nov 26, 2016
My Own Agile Development Flow

My Own Agile Development Flow

Nov 16, 2016
Building a Serverless Dashboard with Slack and Google Apps Script

Building a Serverless Dashboard with Slack and Google Apps Script

Nov 11, 2016
Why I Write

Why I Write

Oct 20, 2016
The Five Types of Virality (Translation)

The Five Types of Virality (Translation)

Sep 20, 2016
What Working With Elon Musk Taught Me About Success

What Working With Elon Musk Taught Me About Success

Sep 14, 2016
Six Months at a General Trading Company

Six Months at a General Trading Company

Oct 28, 2012