Artificial Intelligence : Last invention we'll ever make -- the last challenge we'll ever face

Earlier in 2017, Facebook was working on a new highly-intelligent AI chat-bot that could talk to and negotiate with humans in a realistic manner. When one Facebook engineer had the bright idea to take two of these AI bots and let them talk to each other, that's when something unexpected and terrifying happened. The two AIs invented their own language that us humans couldn't understand and began using it to talk to each other. The Facebook engineers had no idea what they where talking about, but it was very clear that the AIs did communicate. They had invented their own secret code to converse using the power of artificial neural networks.