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Technology

Two kids look at a smartphone at home
Carol Yepes / Getty

‘Close Friends,’ for a Monthly Fee

Influencer culture has normalized charging money for all kinds of intimacy.

Two children talk with tin-can telephones.
Rebecca Nelson / Getty

Talk to People on the Telephone

It’s time to start calling your friends again.

Robert F. Kennedy and Supreme Court Justice William O. Douglas hiking through the woods wearing outdoors gear.
Associated Press

The Military Origins of Layering

The popular way to keep warm outdoors owes a debt to World War II–era clothing science. An Object Lesson.

A person uses a smartphone to take a video of a child.
Carol Yepes / Getty

YouTube Videos Are a Gold Mine for Health Researchers

“Digital exhaust” from online life could be transformed into health insights. Should it be?