Chapter 4. Feedback

A 56-year-old man punched his fist through the glass and into the electronics of the machine. “Yes, I broke the machine and I’d do it again,” he told the security guards. (He was sentenced to 90 days in jail.) Another man, 59-year-old Douglas Batiste, was also arrested for assaulting a machine—by urinating on it. A woman caused $1,800 in damages to another machine by slapping it three times.[24] And 67-year-old Albert Lee Clark, after complaining to an employee and getting no satisfaction, went to his car and got his gun. He came back inside and shot the machine several times.[25]
What device is causing so much rage? Slot machines.
Slot machines are a multi-billion-dollar business. Slot machines take in $7 out of every $10 spent on gambling. Collectively, the money they generate is in the tens of billions, far surpassing the revenue of other forms of entertainment, such as movies, video games, and even pornography.[26] The reason that slot machines—microinteraction devices for sure—work so well at taking money from people is because of the feedback they provide. Most (read: all) of this feedback is insidious, designed specifically to keep people playing for as long as possible.
If you are the statistical anomaly who has never seen or played a slot machine, they work like this: you put coins, bills, or (in newer machines) paper tickets with barcodes into the machine. ...
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