What does Pinker argue about violence?

Pinker argues that Violence is decreasing.

Explanation:

Pinker is a science author. He works as a teacher in the department of psychology at Harvard University. In his book "Better angels of nature"Pinker has presented data on violence. He has collected large information on violence.

He says that the violence is declining with time and we are moving toward a peaceful economy. There has been a decline in wars and an improvement can be seen in the treatment of children. There has been improvement in communication and literacy rates which contributes to less violence. It has given rise to a rational problem - solving. Peace is considered better than war.