Yes, we are in an AdTech bubble where companies attempt to say that their advertisements are more targeted and actually reach people when they aren't. Facebook

Yes, we are in an AdTech bubble where companies attempt to say that their advertisements are more targeted and actually reach people when they aren't. Facebook has had a bunch of issues where their metrics either are inaccurate or don't make sense. Google has cornered advertisment on what people intend to search but probably can't grow much bigger unless they go beyond the United States (the problem is that they are probably already saturated in the top 20 economies). This leaves Video advertisement and that is either getting increasingly harder to monetize or you have to make your own content which basically means you become Netflix, Amazon, Crunchyroll or Youtube (which Google already has). Not to mention the amount of clickfraud that is already happening. So what will happen when this ends is that we will see a bunch of AI promises that can't be fulfilled not occur and a drop in AI investment. Also, any small startup in AdTech will either rise to the occasion or die trying.