I have never really looked at ad revenues, but honestly those numbers seem reasonable and crazy at the same time (or their calculation at least). My main issue is, that I hate oligopolies. For many industries I think a country can protect itself against oligopolies from outside. But everything digital comes out of little valley on the west coast. This really bothers me.

That idea feels really relevant to me as a future research direction(not an expert). Could maybe someone explain what I am missing here? Why does this idea not get more attention?! Is it not new? And if so, could one state why it is not commonly employed?