TonyBai

Mar 22, 2026 · R&D Management

Why 100 Hours of Tutorials Still Leave You Writing Bad Code? Uncover the Engineer’s Growth Loop

The article explains why countless programmers who binge‑watch tutorials remain stuck in a comfort zone, introduces the three‑ring model of Comfort‑Stretch‑Difficulty, and provides concrete Go and AI Agent projects that let engineers move into the narrow but powerful Stretch Zone to achieve real, measurable improvement.