Iain highlights how it is vital that we study saccadic eye movement when researching vision. He demonstrates how many in the Vision Science community ignore two basic properties of vision that are intrinsically connected; (1) the eyes move (2) visual sensitivity is highly heterogeneous across visual space. By discussing the arguments for ignoring these two aspects he shows us how in fact there is no argument. From this, we can understand how the types of questions we ask and experiments we do should change, and that a complete and useful model of vision has to include saccades and fixations.