I think a more appropriate way to define it in this context is trading time for dollars. All of the methods mentioned have a loose correlation between work and revenue. Spend 1000 hours building a course and you might sell 10 subscriptions or you might sell a million.
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We're a place where coders share, stay up-to-date and grow their careers.
If you need to actively work on it, it's not a passive income but an active income.
I think a more appropriate way to define it in this context is trading time for dollars. All of the methods mentioned have a loose correlation between work and revenue. Spend 1000 hours building a course and you might sell 10 subscriptions or you might sell a million.