Thank you for your reply @thetimetravelerz

As AI would increase efficiency and create more jobs in the long run.

I fully agree with you. Virtually every technological invention creates some unemployment, but that shouldn't be considered as a main factor. In a long term everyone benefits, even those who initially lost their jobs.

Given the time that it needs to evolve it would be just other technology that would be safe, useful and human friendly.

I hope so. If only humanity will approach the development of AI properly, it will definitely become one of the most awesome inventions in our history. With this article I wanted to emphasize, that behind amazing possibilities there are serious dangers. We should be aware of them and act carefully, and everything will be ok.