We live in the Comfortocene. Over the past century, many aspects of daily life have been shaped by manufactured thermal comfort, to the point where we now treat it almost as a human right. But because it comes with huge carbon emissions, mechanical comfort is destroying our future. To enable a sustainable transition, we need to reconsider and renegotiate our comfortable way of living, especially our climate-controlled interiors. Professor Daniel A. Barber suggests that architecture’s new ambition should be to condition humans to be uncomfortable. Could designing for discomfort become the new standard in our efforts to combat climate change. Are you ready to be uncomfortable?