I was surprised that it happened so quickly < 24 hours and Facebook is already showing ads related to my recent purchase. It looks like Facebook not only has ac

I was surprised that it happened so quickly < 24 hours and Facebook is already showing ads related to my recent purchase. It looks like Facebook not only has access to data from multiple stores (which I was aware of) , but also can process them in (near) real-time . Also, I was not aware that buying anything health-related, OTC does not fall into HIPAA. Thanks for that info.