This reminds me of the seminal article by The Correspondent about online advertising: https://thecorrespondent.com/100/the-new-dot-com-bubble-is-here-its-called

This reminds me of the seminal article by The Correspondent about online advertising: https://thecorrespondent.com/100/the-new-dot-com-bubble-is-here-its-called-online-advertising/13228924500-22d5fd24 https://thecorrespondent.com/100/the-new-dot-com-bubble-is-h... Relying on your data science or marketing department to tell you how good your data science or marketing department is doing, with their own metrics and their own evaluation methods that you don't understand, can only really lead to one outcome.