Notes from a founder shipping vertical AI for the AEC industry. Real customers, real engineering pain, real builds.https://hogunism.com/https://hogunism.com/blog/expert-domain-vs-model-domain-ai-moat/https://hogunism.com/blog/expert-domain-vs-model-domain-ai-moat/Why vertical AI apps survive what model-domain wrappers cannot — the four structural defenses, three self-tests, and what AEC engineers should build this week.Sun, 31 May 2026 00:00:00 GMTvertical_aiai_strategyaecfounder_notesai_moathttps://hogunism.com/blog/gpt5-is-not-your-competitor-workflow-is/https://hogunism.com/blog/gpt5-is-not-your-competitor-workflow-is/GPT-5 will not kill your AI product. A weak workflow will. Here is why AEC engineers should bet on the workflow layer, not the model layer.Sat, 06 Jun 2026 00:00:00 GMTai_strategyvertical_aiaecworkflowfounder_notes