The document discusses filters to use when selecting a business model. It recommends looking for a lifetime customer model where customers can be served for a long time. It also suggests preparing for a long-term commitment to remain knowledgeable in the market over decades. Additionally, it advises seeking an intermediate price point to attract quality customers and allow for profitability and growth. The document stresses the importance of having sufficient capacity and scale to supply customer needs. Finally, it emphasizes selecting a business that solves customers' problems in a large market.