There is great comfort in the familiar. It's one reason humans often flock to other people who share the same interests, laugh at the same jokes, hold the same political views. But familiar ground may not be the best place to cultivate creativity. Researchers have found that people with deep connections to those from other countries and cultures often see benefits in terms of their creative output. This week, we revisit a favorite 2018 episode about the powerful connection between the ideas we dream up and the people who surround us, and what it really takes to think outside the box.