We get to one of the key concept in the financial independence movement: that we exchange hours of our life for money (i.e. jobs), so when we spend money, we're actually spending our life energy. So the idea is when we stop mindless consumerism, we can buy our future time.

Christen Kelly and Jorden Cummings, recent FF1 grads and current FF2 students, come in and talk about their realizations after learning life-energy/money exchange, particularly doing their calculations of their Real Hourly Wage. When you figure out your RWH, you can calculate how much that pizza, or that article of clothing, or even the rent costs you in life energy, and how much longer it will take you to gaining your life back.