Hans and Ola Rosling 10, How not to be ignorant about the world

TEDSalon Berlin 2014 Jun
Hans and Ola Rosling 10, How not to be ignorant about the world (script)
Summary
In fact, we don't know what happen well in our world . We also don't know what we don't know. The reason why we are so ignorant is that we firstly think of something based on our neighborhood. It gives us a very biased view of how life is on this planet. Scoundly we'd be taught outdated worldviews when we were students at the school. It's because teachers learned something when they went to school and they describe the world to the student though it's without any bad intentions. Third is news. The news always informs interesting and unusual events with exaggeration, because people want to read it.
And then, we have illusions of confidence. So our intuition doesn't work and we can't think correctly.
The solution is that we need  to measure  problems and cure it. By measuring it, we can understand what is the pattern of ignorance. 1) When we face the world problems, we need to know and think that now most things improve, although we'll think that everything is getting worse. 2,3 ) If we are unsure, we can think that the most people are in the middle and the majority already have this. 4) We need to think that the problems are going to be exaggerated.
Let's think about the problems of our world.
How did the number of deaths per year from natural disaster change during the last century?
A.more than double. B.Remained about the same. C.decrease to less than half.
How long did women 30 years old in the world go to school?
A.7 years.  B.5 years.  C.3 years.
In the last 20 years, how did the percentage of people in the world who live in extreme poverty change?
A. more than double.  B.Remained about the same. C.decrease to less than half.
We are not deceived by our preconception. We have to know what has happened now in the world to think about the future. We need to turn out intuition into strength again getting out through the ignorant.
I really enjoyed his ten talks. Although I was surprised that his son appeared on his stage, I want his son to wear glasses like his father. His son will be  the image of his father. Thank you.
                                                                                                         The answer: CAC
Words in this story
preconception / a preconceived idea or prejudice.
exaggeration /  overstatement, overemphasis, magnification