David Ehrenberg of Early Growth Financial Services discusses the importance of creating a 3-year financial plan for startups. The presentation covers how to build bottom-up financial projections including revenue forecasts, spend budgets, and cost assumptions. It also addresses the iterative process of reforecasting the model on a quarterly basis to continuously improve assumptions as the business evolves. The overall goal is for the financial plan to serve as a roadmap that clarifies decision making and objectives while validating assumptions around funding milestones.