memex

“Hit the “acknowledge” button—or the fave, like, or the A-OK—and a quick, auto-generated email would go out to everyone on a message’s thread. Older software would show that message as a regular email, with text like, “At 12:34, Robinson Meyer acknowledged your message.” But newer clients could render it as a single line at the end of the sender’s message, perhaps with all the acknowledgers folded into a sentence as they are on Facebook: “Robinson Meyer, Adrienne LaFrance, and Megan Garber liked this.””