Save hard for a few years, then leave the corpus alone and let it grow. Move the sliders to see your wealth multiple, your saver robot, and the saving rate you would still need after your front-load years. The defaults show the 3-year plan from the book.
Illustrative only, not a guarantee. The model adds your saving at the start of each month, grows it at a fixed annual return, and raises salary and living costs by inflation every year. Wealth multiple = invested corpus ÷ that year's living costs. Real returns vary, some years are negative, and taxes and fees are ignored. Use it to compare plans, not to predict your future.