6min chapter

Planet Money Summer School cover image

MBA 5: Tech and the innovator's dilemma

Planet Money Summer School

CHAPTER

The History of the Electricity Industry

When elevators were first invented, they were like cars: big things that could kill you. The elevator industry tried to make it safer by creating automatic doors with safety bumpers and then a driverless elevator. It took people years to get used to it, but now an elevator feels really safe. But designers have to think carefully about how the two work together because there are rare times when you might allow humans to make a choice and they make the wrong one.

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