"The Hard Problem" is a new episode of the Into The Impossible podcast from the Arthur C. Clarke Center for Human Imagination: it features the outcome of a collaboration between legendary performance artist Marina Abramović (previously) and environmentalist science fiction writer Kim Stanley Robinson (previously): a short story about an interstellar journey incorporating elements of Robinson's outstanding 2015 novel Aurora -- a novel that is pitiless in its insistence on rigor in our thinking about the problems of living in space and on other planets.