Dan Ariely 1: Are we in control of our own decisions?

TED 2008
Dan Ariely: Are we in control of our own decisions? (script)
He is a behavioral economics and an author. His book Predictably Irrational is famous.
Summary
It turns out, vision is one of the best things we do. We have a huge part of our brain dedicated to vision and we're evolutionarily designed to use vision. However, even if this is the best thing in our brain and we're so good at by using this, we have mistakes in vision. Thus, we often have mistakes in something we're not as good at. Further, we're not able to   recognize them, because it is harder for cognitive illusion to demonstrate than visual illusions. It is because we think that we make decisions by ourselves but we don't realize that there are many things around us which have a huge influence on our actions.
When we see the results of our actions, we feel that we're in control and we are making the decision by ourselves. We actually have an illusion of making decision. It is not because we don't care. It is because we care, but it is too difficult and complex for us to know what to do.  So we have no idea what to do, we just pick whatever it was that was chosen for us. It'll show that the choices are difficult and we don't know our preference as well. In fact, irrationally, we have to choose anything that someone predicts and prepares. It is so interesting as the behavioral economics, but it is irrational.

Words in this story
dedicate /  devote, commit, pledge, give, devote (time, effort, or oneself) to a particular task or purpose.
behavioral economics / the study of the influenceof emotions, opinions, etc. on the decisions peopleand organizations make in spending, saving, etc.
irrational / not using reason or clear thinking.
consistent / constant, regular
subscription / application, a signature or short piece of writing at the end of a document.