TARGETED [digital] marketing is supposed to get advertiser's ads in front of the people most likely to find interest in them. According to Google, and Facebook, they know who these people are because they track and "analyze" the content of each and every one of their user's posts, so they claim to know what we like and don't, where we hang out, what attracts us, and what we'll pass on. However, even with all this data crunching, quantitative data doesn't really tell us qualitative reasons why anyone really does most anything. This is a fatal flaw with machine learning, often called AI (artificial intelligence), and why, even with all this data, response rates average between .05 - 5% with most digital marketing efforts, which is actually LOWER than with print, TV ads, and other'traditional' media.