I think you're right about the targeted ads. Many people have expressed similar sentiment. I suspect that most advertising is actually driven by supply (that i

I think you're right about the targeted ads. Many people have expressed similar sentiment. I suspect that most advertising is actually driven by supply (that is, somebody wants to advertise X), not demand (somebody needing Y at the moment), and that's why targeting doesn't really work that well, and the disadvantage of untargeted ads (or targeted by content) is much smaller than advertising industry claims.