Not only that, but at least since 8 years ago give or take, your cookies/other identifying info can be matched to an offline traceable tender such as credit car

Not only that, but at least since 8 years ago give or take, your cookies/other identifying info can be matched to an offline traceable tender such as credit card / loyalty program. 8 years ago, I could very much target viewers (no click needed) who have bought XYZ using a credit card or on the attribution end, know you saw a specific ad and went into the store and bought it. Javascript and browse behavior added much resolution to that. Source: Am in the advertising industry and worked on accounts in the Fortune 5.