Bits: Daily Report: Facebook Has a Bug. Can It Be Fixed?

Critics say the social media giant has played a big role in the polarization of information. But getting to the truth won’t be so simple.

It is tempting to say there are two kinds of people these days: those who are willing to spend $425 on designer jeans that have been stained with pretend mud and those who get actual mud on their jeans.

Through the prism of Tuesday’s internet outrage — pricey jeans that were decorated with fake mud and offered by the retailer Nordstrom — let’s try to understand what critics said was the biggest problem at Facebook: The social media service’s highly successful and highly algorithmic news feed has split its members into two camps.