You always hear people complaining about a the fact that a Free-Market has boom and bust cycles, and how that is a bad thing. The reality is that you really do want the market to boom and bust, whether you know it or not.
The marketing world has changed. Previously we tended to assume a
direct consequence of a marketing initiative on a consumer (hell, even
proved it qualitatively and quantitatively), and the trick was to
scale this as widely as we could. One consumer sees an ad we know
they like, buys a product, therefore let’s get as many consumers to
see the ad.