Alastair Somerville is a sensory design consultant who works with museums, galleries, and public spaces. He discusses how emotions and actions form a feedback loop that adapts to increasing complexity. Simple things can have emotional meanings, and people sense their environment, make meanings, and then make conscious decisions to take action. Emotions and consciousness enable people to adapt and imagine, forming meanings iteratively with emotion. Complexity itself is not problematic; confusion is what needs to be understood and avoided in the design process.