It’s easy to assume that imagination is an indulgence, or a distraction from important and more difficult work. I think this view has it all wrong. Imagining is not easy if done well. We have to relentlessly fight for our capacity to do it, and keep the steady forces of dullness and routine from crowding it out. We can’t get lazy if we want to generate change and progress. We’ve got to learn to imagine as a discipline.