What do rats dream about? What’s with our fiction addiction? Is the hippocampus where free will takes a holiday? And does mind-wandering drive creativity? While psychologists write bestsellers about humans’ smarter side – language, cognition, consciousness – and self-help gurus harangue us to be attentive and mindful, we all know that much of the time our minds are just goofing off. So what does the brain do when you’re not looking? Join acclaimed science communicator Michael Corballis, author of The Wandering Mind, in conversation with Ken Strongman, to find out.