https://yutongjin.com/tags/email/Recent content in Email on Yutong JinHugoen-usFri, 10 Apr 2026 00:00:00 +0000https://yutongjin.com/posts/410_learning/Fri, 10 Apr 2026 00:00:00 +0000https://yutongjin.com/posts/410_learning/<h1 id="lessons-learned-from-my-product-discovery-journey">Lessons Learned from My Product Discovery Journey</h1> <h2 id="key-lessons">Key Lessons</h2> <h3 id="1-start-with-a-minimal-product-scope">1. Start with a minimal product scope</h3> <p>I learned that I should begin with a small and clear set of functional requirements instead of adding extra features too early. In system design interviews, simple is usually better than broad. I should focus first on the core user needs and avoid introducing features that are not explicitly required.</p> <h3 id="2-always-call-out-non-functional-requirements-early">2. Always call out non-functional requirements early</h3> <p>One of my biggest takeaways is that I need to explicitly mention non-functional requirements such as:</p>