> otherwise people wouldn’t keep investing billions into this bullshit industry There are plenty of reasons why this money might be spend without clear evidenc

> otherwise people wouldn’t keep investing billions into this bullshit industry There are plenty of reasons why this money might be spend without clear evidence of a ROI: - marketing departments are under pressure to increase sales in a world where the traditional outlets (TV, newspapers, ...) loose relevance - internet ad campaigns look convincing with all sorts of nice numbers, but unfortunately many of those numbers simply don’t mean what one might think they mean (fake clicks, accidental clicks, ...) - the corporate world is slow. Which head of department would voluntarily suggest to reduce their budget? The higher ups are too far away to really challenge this stuff