of 10 Day in and day out, we create this expense. You have anything from the floor and the layout plans of buildings, to an intense navigational system, or a simple checkup Process. If we break this down and look fundamentally at it, we can bring right back to different types of pathways, linear, and non-linear. Very easy way to look at this is, a maze labyrinth, a linear labyrinth. You have one pathway to get to the end. Channelled in, simple, and direct, a checkout process. Non-linear, you have many different processes, different ways to get there. People that encounter these types of things, require more cognitive load to navigate. Face with more challenges to get through. Complex navigation structure, or another easy example, is going on the highway, from point A to point B, and then you are in the city, dealing with lots of different outputs. So, the complexity of the past that you move on, actually has a big influence on the attentiveness of the people that are moving through. Studies from Oxford have actually shown that bus drivers have a smaller hippocampus, because they use linear processes day out and day and, from point a to point B. Taxi drivers, actually have a larger hippocampus, they are more engaged, solving problems day in and day out, between each and every trip, of efficient paths. They are dealing with more. Of late, we have had an influx of linear experiences. We have got U-tube, Netflix, everything that is staring us along the linear path of consumption. More grabbing of our attention, machine learning algorithms that serve up the sleep depriving link or image. From here, a really helpful way to paint the picture further, is a concept from literature. 'House of Leaves' appropriated the term 'ergodik', nontrivial effort, or extra effort is required to allow the reader to traverse the text, this is a pretty hard book to read, it is called (inaudible), from a design context, we bring this in, using it as a lens to explain and face challenges, as people go through challenges that we create. What would this type of design look like? It can be deliberately applying a cognitive load, step, pause, to really help someone to understand, to take a break, help them face a weighted tension, understand the message that they need to receive . I'm not saying that linear or nonlinear are good or bad, there is a case for both, but as we move through, as designers, I really want to ask you all," are we putting enough deliberate breakpoints, or friction, to help users understand what they are giving away by signing up to this? By giving away permission? Data?". Next time, ask yourself, "Is it too simple?". TIM: Go back to the Mentimeter site, we have some questions up there. We have heard from two very passionate individuals already, and we still have two more. Think