Mishneh Torah, Defilement by a Corpse 15-17 · Startup voice, On-ramp

Hook

You’re a founder building a scalable, high-growth entity. You believe you’ve created a "moat"—a set of processes, proprietary data, or strategic partnerships that protect your business from the "impurity" of market disruption or competitive encroachment. But here is the brutal reality: most of what founders call a "moat" is actually just "rotting straw."

In the laws of ritual purity, Maimonides distinguishes between a wall that truly seals a space and one that only appears to do so. If you block a window with something you intend to move—grain that might damage your wall, food that is still edible, or assets you plan to liquidate—you haven't actually closed the window. The "impurity" (the risk, the technical debt, the competitive threat) flows right through.