Earlier quoted context omitted.
It would take you well over a million in assets to generate 5000 dollars of passive income. And the higher the payout the less passive/safe it becomes (i.e., CD > Real state > businesses > web apps > ???)
Not really. A hot mobile app can sell for that much, and doesn't require anything more than a laptop and some time.
And "time" is work. Building a house also requires just some materials and some time :). Even real state needs management (things break, rents have to be collected, risk of lawsuits, tenants that dont pay).