Are we prepared for the rising artificial intelligence?

On Thursday,Lee,one of the best Go player of the world, was beaten by the AlphaGo,which is developed by Google's artificial intelligence subsidiary DeepMind.
There remains a question that who could dominate the world in the future,human or artifical intelligence?And whether artificial intelligence could surpass human being in the end.
In 1997,the super computer Deep blue win a best international chess player.However,it can not win other players in other games.Because at that time,the program is limitted.
Nowadays,artificial intelligence can do more than the past and improved a lot in using algorithms.
If the artificial intelligence continue in that way,should we get ready for the coming day？