Why do emotions matter?

In a world where we have been convinced that being emotional is a bad thing and expressing how we feel is viewed as mostly a minefield of messiness and not done, do emotions really matter? Or would it be better to be more like a robot, unfeeling, calculating and precise?

Matthew and Chantal talk about their exploration into emotions, why they started out on this journey in the first place and what they came to discover on the way.