How realistic is this though? Imagine you come out of college and work for the Big 4 making $100k. Assuming you make 10% more (compounding) every 2 years, by 38-36 you would make over $200k, by 50 you are making close to $500k. You hit that much sooner if you change those numbers by 20%. At what point do those returns diminish and you're having to do something more creative than simply looking for a job every 2 years?