We all rely on our gut feelings, but intuition is a terrible guide. If we believed what our minds tell us, we’d all think the world is flat (it’s not even round), the sun orbits the Earth (nope), and that a day is made up of 24 hours (close but also no). Drs Adam Rutherford explains that reality is not what it seems, common sense is neither common nor sensible, and our minds have evolved to lie to us all the time. They journey through time and space, from the beginnings of life on Earth to the wondrous aliens elsewhere in the galaxies, from the darkest depths of infinity – via a hypnotised snail – to the brightest recesses of our minds.