While a decent top level view, it's worth mentioning that there is some well regarded math to use when deciding "how much"...typically if you can save up 25× your expenses in invested assets you have reached what many call Financial Independence (assuming you live off of 4% of your initial savings)...also I'm not sure that the point of FI is to live in "absolute abundance" as much as it is to live your current lifestyle with a low probability of having to return to active income.