Perhaps the most important insight NASA has gleaned from studying team dynamics—in space and on Earth—is the preciousness of one trait in particular: a sense of humour. Studies of crews overwintering at the South Pole show that a confined group needs people to fulfil various roles, including leader, storyteller and social secretary. But the most important task by far is that of the clown, a person who is funny and also wise enough to understand each member of the group and defuse tensions.

How to prevent conflict on the way to Mars

History is not true. You can change history. The actual factual events are such a small part of the story. Everything else is interpretation. It’s never too late to change a story.

The past is not true by Derek Sivers