The concept of a product roadmap is crucial for building great products, as it involves making hard decisions and trade-offs. A well-planned roadmap balances new ideas with iterative improvements, addressing customer problems, improving quality, and features to help scale the business. The key to nailing a great roadmap is to have a balance between these types of ideas, ensuring that resources are allocated effectively. Great product teams use various inputs to inform their roadmap, including customer conversations, research analysis, and sales strategy. By balancing different priorities, teams can avoid making half-baked features or focusing solely on customer requests, while also keeping the product high-quality and bug-free. The roadmap serves as a guide for prioritization, allowing teams to make deliberate decisions about what to build next, and ensuring that their product remains relevant and competitive in the market.