Human brain, which is considered by many the most complex object of the universe, has intrigued humanity since its very beginning. We can see that human brain has been an object of study for ancient Egyptians to Leonardo da Vinci and Hans Berger. More recently, the technological field of computational intelligence has met a rapid growth. Several machine learning schemes are inspired by the human brain and are trying to imitate its functionalities. The natural question that rises is: Can we copy the human brain?