No need to start worrying about AI reaching a level of intelligence far beyond human capabilities until it actually reaches the level of humans and assuming that ever happens it could be a very very long way off. All of the intelligence "AI" has right now comes from the human data that it was trained on. It's been given enough power to crunch numbers better than we do, as any computer can, and more data to play with than any one human can retain, but none of that equals intelligence. Speculating on a sci-fi future however, if AI is ever able to create new and more advanced forms of AI, which can also create new and and more advanced forms of AI we'll be outpaced quickly.