AOL deliberately engineered email to exploit its habit-forming check-in pull

Evidence

For almost all of its history, AOL’s most important feature was email; even more subscribers used it than visited the chat rooms. We have already seen how email was able to induce a Skinneresque check-in habit even among the first scientists to use it. Perceiving straightaway email’s habit-forming properties, Steve Case and his team applied themselves to encouraging the addiction among subscribers. For one thing, users could send an unlimited number of emails. Prodigy, by contrast, having been slow to offer email, foolishly decided to charge users who sent more than thirty per month. At AOL, email was sent early and often. In fact, the whole user interface centered on the application. Immediately after logging on, one heard a pleasant male voice saying: “You’ve got mail.” With that appeared a whimsical picture of a postbox stuffed with letters, a virtual cornucopia of potential rewards in human connection. — Tim Wu, The Attention Merchants, 715

Categorization

• DEEPTHINKING: The design decisions here — unlimited sending, interface centered on the inbox, ‘You’ve got mail’ as a variable-reward cue — are primitive ancestors of every modern engagement-optimization system.
• XREF: Builds directly on the earlier chapter’s account of email’s Skinneresque check-in habit among pioneering scientists. — connects to: Variable reinforcement explains why people compulsively check email — Tim Wu, The Attention Merchants, 653; Email’s adoption functioned as large-scale operant conditioning preparing users for later attention harvesting — Tim Wu, The Attention Merchants, 656
• BMF: The engineered ‘You’ve got mail’ reward cue resonates with 2001’s HAL and the dopamine-lure of systems that manage rather than serve their users.

Broader Connections

• Email’s adoption functioned as large-scale operant conditioning preparing users for later attention harvesting #expands (0.85) — Tim Wu, The Attention Merchants, 656