Martin Fowler • 5/12/2026

What is Code

This article by Unmesh Joshi delves into the fundamental nature of code, arguing that while LLMs can generate executable instructions cheaply, the true value of code lies in its role as a conceptual model of the problem domain. It highlights how code embodies a shared vocabulary and design, enabling human reasoning and communication. The piece discusses bounded contexts, programming languages as thinking tools, and cognitive debt, urging developers to focus on the conceptual integrity of code rather than mere production.

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#llm #Conceptual Model #Unmesh Joshi