This lecture addresses several important questions on the interface between technology and society:
Why our world becomes ever more complex?
Can we cope with world complexity?
What is the relation between freedom of speech and information filtering?
What is the psychological background of on-line cults and conspiracy theories?
Why negative views propagate faster?
What is the relation of irrationalism, and anti-elitism, to social media disinformation?
How can we valorize our private data?