Personal Growth ／ Cross-source synthesis
In-Depth Retrospective / Failure Pitfall Case Library (Cross-Author Thematic Synthesis)
A synthesis of retrospectives and failure cases from 3 perspectives. yitang Truman's in-depth retrospective (5 parts + 5-step method + 5 principles + 4 levels + AAR + quotes from Wang Xing / Liu Chuanzhi / Chairman Mao + Yu Lu's 5-year retrospective of Someet) / Wang Kai's 11 firsthand product failure lessons (FastFacts SEC / AiPathly / Quanta Quest / WhatsApp push / MJ for Feishu / AI smoking cessation / Squirrel Quick Read) + 6 failure modes / Xiaohongshu vibecoding pitfalls (0-80 vs 80-100 / Vibe Coding cleanup prophecy). Covers AAR 4 questions, 4-layer retrospective, 6 major categories of failure modes, and hidden pitfalls of Vibe Coding