Brent Goldfarb, a professor of business at the University of Maryland who’s also the co-author of a forthcoming book called Bubbles and Crashes: The Boom and Bust of Technological Innovation, explained that the easiest way to understand a bubble is to think about a stock that people keep buying mostly because other people are doing the same thing.

Read this article: “What a Student Loan ‘Bubble’ Bursting Might Look Like” at Vice.