This explains itself. But it only gives one the idea that a non-ending source of income over time outweighs your regular, or typical income streams. This is so true. That’s why developing some sort of residual income is almost a must do in this world now. Something that you maybe invest a lot more time in the beginning than in the few years after, but your work will only decrease once you have a significant difference in lifestyle to the point that you could survive another 20-60 years on this income stream.