For a simple personal example, I have weirdly-shaped kitchen cabinets, and it took me months of trial and error to find a cutlery organizer of exactly the right size to fit. If I'd had some way of plugging in drawer measurements and getting back a list of things that fit, that would have been a purchase the first day.
As you correctly observe, the statement "people wouldn't buy what they need without advertising" is obviously wrong. What I was getting at was manufactured demand, and my belief that it's a significant part of non-immediate-need purchases.
I don't have any disagreement with the claim that some demand is advertising-generated (in fact, it's a non-trivial part of advertising's purpose). Thanks for clarifying!
https://www.britannica.com/topic/conspicuous-consumption#ref...
Advertising is inherently about persuasion, not information.
If I have a problem that needs solving, I will research it, hear earnest recommendations from friends, or find about it through static advertising in appropriate venues. Imagining that I have some problem that I am not aware of, and that I will be grateful for your communication if only you can reach me, is the epitome of arrogance.