Critical thinking versus opinion.
In many TED Conversations I've noticed the fear to the critical thinking that has been replace by opinions.
Why is so easy to say nonsense without the minimal aproach to knowledge
Why this simple magical fantasies in our times?
Are we in the threshold of a new dark age?
What can we do to recover one of the most precious human gifts?
How can we unmask all the liers and hoax-makers?
Why we have to believe them?