[superuser2]

How will people know where or how to buy what they want without advertising?

[DavidWanjiru]

How do people know where to find/make the things they do have an innate need for without advertisement as you seem to define it?

[tszymczyszyn]

Advertising does not equal flow of information.

[superuser2]

Sure it does. Advertising is the flow of information about what products and services are available, how much they cost, and where to purchase them. Some are crass, some are subtle, some are sprayed, some are targeted, and the very best (personal recommendations and such) aren't even paid for. They are all advertisements.