haecceitas
“It's important for voters to understand how these machines work. Every feature of a slot machine -its mathematical structure, visual graphics, sound dynamics, seating and screen ergonomics– is calibrated to increase a gambler's “time on device” and to encourage “play to extinction,” which is industry jargon for playing until all your money is gone.”
https://www.washingtonpost.com/wp-dyn/content/article/2008/07/04/AR2008070402134_pf.html