Blog
Personal and technical writing on small-business analytics, Grain First data modeling, operations, and building CareerTalkLab with AI.
All long-form essays on CareerTalkLab, Errorless Teaching (Prompt → Echo → Distractor → Transfer), and building with LLMs are published here.
The Machine is Wrong: Designing AI Feedback Loops for EFL
Why fluent AI corrections can miss a learner’s goal, and how lesson constraints, calibrated evaluation, and reviewed learner feedback can improve EFL tutoring.
Your AI Tutor is Making You Worse at English
You paste your paragraph, the AI fixes it, you copy the result. The AI practiced writing professional English. You practiced copy-paste. Here's why that's a problem.
Why Generic AI is Failing Professional English Learners
Most professionals think ChatGPT as a tutor is a breakthrough. It is — but it has a hidden flaw. Here's what generic AI gets wrong, and how Errorless Teaching fixes it.
Why Your Best Engineers Can’t Explain Their Own Work
Your lead engineer just shipped something that reduced latency by 40%. In the retro, they said: 'I fixed the queries. It's faster now.' That's not a communication failure — it's an invisibility problem.
What is Errorless Teaching — and Why Does It Work for Adult Professionals?
Most language apps let you fail, then correct you. Errorless Teaching flips the model. Here's the science behind it and why it matters for professionals.