Because its good to invest in bitcoin coz bitcoin value is high so people wants to invest in bitcoin and the world is talking about its value.
Bitcoin is crazy among in the world because of its decentralised nature. In which you are your own boss their is no central authority or person who control bitcoin. Bitcoin also famous for its Blockchain software by the help of this software you can track any one public history or information without knowing the their personal information. Another crazy thing of bitcoin is its money transaction facility which help many people to setup their online bussineess. And also help many people to im transactions sector.