1. The document discusses different types of problems including critical problems, tame problems, and wicked problems. Wicked problems are systemic and stubborn issues with no clear solutions like unsustainable fishing or climate change.
2. When facing wicked problems, entrepreneurs are advised to understand the problem well, look for opportunities to bridge gaps or cut the problem down to size, and study what works in analogous systems. Building trust between stakeholders is also important.
3. The document provides examples of "H.E.R.O.'ic enterprises" that tackle wicked problems like pollution and disease through innovative solutions. Successful entrepreneurs are told that any institution was once just a handful of people deciding to start something.