When you think about it, "real" advertising is the same - think how many people drive past a billboard vs how many of them actually buy whatever is on the billb

When you think about it, "real" advertising is the same - think how many people drive past a billboard vs how many of them actually buy whatever is on the billboard. Google/Facebook really shoot themselves in the foot by claiming that they only target your ads at people who are already interested in what you're selling. That makes their ad services sound like some sort of marketing panacea and sets the expectation that you'll get a lot more interest than you actually will. What they don't want to acknowledge is that people are just as desensitised to, and disinterested in online ads as they are in "real" ads.