My understanding is that the average of average costs to obtain a customer is relatively unchanged over the years. Even going back to well before the internet e

My understanding is that the average of average costs to obtain a customer is relatively unchanged over the years. Even going back to well before the internet existed, the numbers are relatively equal. So we have all these platform vacuuming up massive volumes of personal data so that companies and organizations can target individuals with surgical precision.... and it might not be any more effective on the aggregate than traditional advertising in the 60s. https://www.nber.org/papers/w20171.pdf https://www.nber.org/papers/w20171.pdf