Here's a founder filter I use when evaluating startup teams: ask yourself three hard questions. First, what's your genuine deep-in-the-weeds domain experience? Second, where are you genuinely world-class—not good, actually world-class? Third, what do you obsess over outside work, the stuff you naturally have real knowledge in? These three dimensions matter because the best founders build at the intersection of authentic expertise, proven excellence, and genuine passion. When founders try to force ideas that don't align with these three anchors, startups struggle. Your venture should grow from who you actually are and what you actually know, not what sounds trendy.