Jonathan Haidt once heralded an “ultrasocial” world. Now he’s one of social media’s most prominent critics.

The current panic about urban decay and disorder is classic displacement.

Adapting to the new economy has made young people drastically more worried and dissatisfied than their parents' generation.

There may be a scientific explanation (and upside) to sensory issues.

They speak to the same American anxieties—even though they offer radically different solutions.