Why We Need World Models to Replace Chatbots

Three years in, models are 100x more capable. Why is AI still just a chat box? The chat box is the Nokia of the AI era. From chatbots to agents to wearables plus world models — here’s the next decade of AI product evolution.

April 25, 2026 · 16 min · David Zhang

Smart Glasses: The Next Trillion-Dollar Market You Can't Ignore

Meta sold 7 million smart glasses last year. In 2026, Apple, Google, and Samsung are all entering the space. AI is native from day one, and an entirely new interaction paradigm is being defined. This isn’t a prediction — it’s already happening.

April 13, 2026 · 10 min · David Zhang

I Built an Open-Source macOS Voice Typing Tool

Typeless charges $12/month for a straightforward feature set, so I built a free alternative. Hotkeys, permissions, audio recording, status feedback, text insertion — five modules that each looked simple and each fought back. A record of the technical choices, pitfalls, and design decisions along the way.

April 10, 2026 · 9 min · David Zhang

How I Built an iOS App MVP in 4 Hours: A Blueprint for AI-Driven Development

Outlines a disciplined, four-phase framework for rapidly building a production-ready iOS MVP using an AI assistant, emphasizing rigorous upfront system design, sequenced prompting, and a strict validation loop with atomic Git commits.

February 14, 2026 · 4 min · David Zhang

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