Google's end goal is Answer Machine but we are decades away from that. Answer Machine would be something like God-like software which gives you the ultimate answer to your query and that answer would be 100% accurate, true and personalized/suited for you. Again blackbox solution but it will be so advance with the help of AI that it would be trustworthy by default/design. Hard to achieve but looking at the Moore's Law and the advance of AI it will eventually be achieved.