Hi, today I would like to share with you all great presentation by Dan Ariely. You may be surprised how wrong is our perception. In psychology, there is a subject I do not know the correct name. But, when you decide what book to buy, you cannot make a decision correctly because you do not know what is inside, so you answer in mind different questions. Is the book’s face nice? Is the first chapter nice? etc. So you replace the question that you cannot find the answer you replace it with expectations. But is it impossible to get an answer to question how much money CEOs earn around the world? So you answer a lot :). I do not know how this replacement of question should have a name, but I know that there is such a thing. So, important is to find an answer to the correct questions in my opinion. Enjoy this great TED presentation.