“Maybe you want your partner to stop smoking. This startup will generate a special link for you that looks like it’s an e-commerce site. You send it to your partner and when they click it, they get a cookie secretly loaded into their browser. This cookie enables the company to track your partner across the web. You write up an anti-smoking ad, and the company will ensure that your partner sees that ad everywhere”
"Facebook isn’t telling advertisers, 'Here's the price you would need to pay to buy Mary’s eyeballs versus Adam’s eyeballs and here's all of the information you would need to make the decision about whose eyeballs you should purchase.' Instead, Facebook is saying, 'Tell us about your advertising campaign, and we will figure out what you would have rationally done if you had access to our troves of information.'"