Good mental model, but I feel its intended audience is people who have their basic needs met. You need at least X calories a day (ideally, healthy ones), you ne

Good mental model, but I feel its intended audience is people who have their basic needs met. You need at least X calories a day (ideally, healthy ones), you need a roof over your head, etc. Keeping that context in mind, recognizing that many of our "needs" are actually "wants" (or at least on a spectrum), and that they are more under our control than income, is a superpower. Especially as your income grows, you adapt to the hedonic treadill and/or are under pressure to keep up with the Joneses.