Imagine walking up a mountain, it was so good to see the views that you continued to do the same journey every day for several years. One day you meet another person coming down the mountain, it was strange as you didn’t think anyone else walked this mountain. You chatted to him and he mentioned that the views on the other side of the mountain were even better than this side, you then bid goodbye. Then, thinking to yourself why have I never considered seeing the other side of the mountain? The pathway that you walked was so ingrained into your system that it was the only option. After this you found many ways to walk and see the beauty around the mountain.
Consider a person walking into town, your observing through a lens and can see him swinging his arms across his body when he walks,