The document discusses estimating the cost of delaying a project. It suggests splitting into teams to brainstorm new product ideas and estimate what delaying the project by 3 months would cost. Key considerations for developing a baseline economic model include pricing trends, market size and share determining unit sales, unit costs, development and marketing expenses. The model can then be used to develop variations considering delays, cost overruns, or sales estimates being off. Decision rules should be created to help determine if added features justify potential delays or costs. Keeping models simple and ensuring decision-makers understand and apply the rules is important.