Hmm, I guess many people have a false definition of 'passive' in mind. It's not like "build something and it will make you money forever" - it's rather like "Bu

Hmm, I guess many people have a false definition of 'passive' in mind. It's not like "build something and it will make you money forever" - it's rather like "Build something and for the time you build another thing it will make you money. But then go back and put some more work into it or it will die". Passive income sources always dry up if you don't put constant work into them. I never had one last longer than 2 years without working on it from time to time. To me the prototypical passive income model is a software product. Once you get it out you can reap revenue for one or maybe two years without much additional work. But after that you better release an update.