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Build Software. Build Users

The article argues that traditional testing cannot guarantee software quality because it often ignores real user behavior. It proposes "vibe coding"—using LLM‑driven agents that embody target users to inform development from the outset. By iteratively building user agents, defining happy‑path flows, and then generating code, teams can create simpler, more intuitive applications. The approach reframes quality as user‑centric simplicity rather than test coverage metrics.