Google has built ad products on data about what you want, and Facebook has built ad products on data about who you are, which are both natural extensions of the

Google has built ad products on data about what you want, and Facebook has built ad products on data about who you are, which are both natural extensions of the data they receive in order to deliver you their core service. Which constitutes more data or a creepier amount, unsure. But I’m more wary of services that are mashing that data together to get a fuller picture of you.