Writing

Notes and essays.

This is where I think out loud. Some notes are tidy. Some are still working themselves out.

Choosing GPT-5.6 for knowledge work

A practical guide to GPT-5.6 model choices, costs, and enterprise security questions.

AI spend looks small until subscriptions, APIs, infrastructure, and team budgets are counted together.

The design.md file keeps Codex from redesigning this site every time I change it.

A 245-million-token usage total made my side-project budget feel less abstract.

AI agents still need someone to decide what to do, supply context, and check the result.

Why I want this site to show unfinished work, not just finished projects.

AI made the basketball poster. I still had to fix the QR code.

ChatGPT helped me diagnose a dead fridge. It did not help me find the replacement part.