What Makes Sloths So Slow?

Brickbat: Volunteer Medicine

Turning the Psychedelic Experience into a Math Problem

A philosophy of home

Europeans Are the G7’s Grownups

How to See a Bird: Robert Macfarlane and Jackie Morris’s Exquisite Illustrated Field Guide to the Wonder of the Winged

Modi Is Rigging Indian Democracy

Jinhua Zhao named head of the Department of Urban Studies and Planning

The Big Picture

Resistance Against Civics Schools

Americans Are Already Paying Dearly for the National Debt

What makes Great Books great? Their honesty, rigor, seriousness, and sensitivity — all qualities they can lend to their readers

3D-printed devices could streamline the production of drug-delivery microparticles

When AI Builds Itself

Your Saliva Knows How Sleepy You Are

Law Students: Interested in Helping With Cite-Checking on the Journal of Free Speech Law?

Open Thread

Generational Warfare at Work

Gods at the Gate of Modernity—Religious Arts in Colonial Calcutta

Where Is China’s Trillion-Dollar Trade Surplus Going?

Open Thread