have yet to meet anyone who made it out of the World Trade Center on 9/11 without having memorable interactions with at least one other person. Which parts of their brains lit up when they had those conversations? How did their behavior change after they exchanged bits of information and helped each other up off the ground? Disasters, by definition, do not happen to individuals. The only way to fully understand our behavior, then, is to look around at the people beside us.
