Income is step one. Investment of that income is step two.
A "salary" is income that is bound to time worked.
"Passive income" is income that is not bound to time worked.
The key difference between passive income vs investing, is what is being invested. With passive income like salary _time_ is the investment, not money. That's why it's income.
All the comments discussing saving and investment strategies are rather missing the point of the question.
Income is step one. Investment of that income is step two.
A "salary" is income that is bound to time worked.
"Passive income" is income that is not bound to time worked.
The key difference between passive income vs investing, is what is being invested. With passive income like salary _time_ is the investment, not money. That's why it's income.
All the comments discussing saving and investment strategies are rather missing the point of the question.