-- We live in an era of instant gratification. But some things--to reach their full potential--simply cannot be rushed. On this week's show, TED speakers explore what we can learn from ideas ... that take time.

It's easy to see why sloths have become icons of laziness. But zoologist Lucy Cooke says behind their leisurely pace is a marvelous evolutionary advantage that is the secret to their survival.

Sleep is crucial for our health-and there are alarming consequences when we don't get enough. Matthew Walker explores the many benefits of a full night of sleep, and how to make sleep a priority.

For generations, Indigenous people have used slow but sophisticated technology to build elaborate structures. Architect Julia Watson says their designs can guide our response to the climate crisis.