Scott Kelly and Chris Bosh on Learning to Focus

From a Wall Street Journal column that asked luminaries to weigh in on the subject of focus:

Scott Kelly

“Becoming an astronaut takes focus. In space, there are some things you do that are so critical that if you were to do them incorrectly, you could kill yourself, your crew members; you could destroy the spacecraft. If you’re shutting down an engine during ascent, the implications of doing the procedure improperly are that you blow up.