I am not the sum total of my search queries

A linear algebra reference to the Excel SUMPRODUCT() function, known coloquially as SUMTOTAL, and that Google search queries or Facebook Marketplace clickstream data from 10 years ago is being used to make judgements about you today.

May also be applied to text message content, telephone call verbatims, click stream data, IEMI GPS location data data from cell-towers, and lists of contacts in cloud storage.

Engineer from some latest tech startup having bevvies at The End-Up in SF leans over to an obviously NSA guy: Hey bro, you like my new t-shirt? NSA dude sees in big print "I am not the sum total of my search queries" then runs.