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Tetsuji Kondo

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Feb 27

A Simple Funnel Test with Systeme.io (and Where I Hit a Wall)

A beginner’s look at what the free plan can do — and why email sending was harder than I expected.

A Simple Funnel Test with Systeme.io (and Where I Hit a Wall)

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3h ago

Why Does Following Someone on Medium Mean More Emails?

Following a writer and subscribing to their emails are two different things. So why isn’t the distinction clearer?

Why Does Following Someone on Medium Mean More Emails?

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Oct 6

About AI #2x04: I Just Wanted to Try the OpenAI API. I Gave Up Before Making a Single API Call.

After hours of MFA recovery, passkeys, API key setup, and two declined credit cards, I realized I was spending more time debugging access…

About AI #2x04: I Just Wanted to Try the OpenAI API. I Gave Up Before Making a Single API Call.

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Oct 3

Why Is It So Hard Just to Log In to ChatGPT?

When security gets so complicated that legitimate users can’t access the service, something has gone wrong with the login experience.

Why Is It So Hard Just to Log In to ChatGPT?

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Oct 1

Why We Should Preserve Data for AI That Doesn’t Exist Yet

Today’s data may reveal things we cannot see yet. The question is how much of our lives we are willing to preserve — and at what cost to…

Why We Should Preserve Data for AI That Doesn’t Exist Yet

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Sep 30

I Want ChatGPT Projects to Have a Parent

When you use multiple ChatGPT Projects for ongoing work, managing the projects themselves becomes another project. I’d rather have AI do…

I Want ChatGPT Projects to Have a Parent

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Sep 30

Chrome’s Vertical Tabs and the Exhausting Era of Useless UI Tweaks

Can we please stop pushing half-baked features and just fix the memory bloat?

Chrome’s Vertical Tabs and the Exhausting Era of Useless UI Tweaks

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Sep 29

English App #2x01: I Built My Own English Conversation App. Now I’m Wondering If I Even Need It.

I discovered ChatGPT Voice today and realized that practicing listening and speaking might be as simple as turning on my microphone and…

English App #2x01: I Built My Own English Conversation App. Now I’m Wondering If I Even Need It.

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Sep 26

Mail App #5x01: From Saving Emails to an AI-Ready Daily Digest

After years of collecting newsletters, I’m changing my Mail App from a system that mainly stores information into one that helps me…

Mail App #5x01: From Saving Emails to an AI-Ready Daily Digest

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Sep 26

Can We Really Know Why AI Gave Us That Answer?

Maybe the problem isn’t only how AI thinks, but also how we ask, judge, and decide what “correct” means.

Can We Really Know Why AI Gave Us That Answer?

Tetsuji Kondo

Tetsuji Kondohe/him

I document daily insights, conversations with AI, and my experiences developing apps with the help of AI.

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