The one book that gave me an actual framework for investing — three simple principles, the 4% Rule, and the idea of "F-You Money" that changed how I think about financial independence.

In the final part of this series, the focus shifts to the ultimate goals. This post defines the numbers that complete the dream: the "Key Bill" passive income that covers a major expense, the Financial Independence (FIRE) number that makes work truly optional, and the “Big Dream” fund.