Google, the search engine and advertising company, has acquired Boston Dynamics — the robotics and engineering company famous for the creation of some of the world’s most advanced robots, including BigDog, Cheetah, Petman, and Atlas. This brings Google’s total number of robot-related acquisitions to eight, and the company now has teams of robotics experts in California and Japan. As we’ve previously reported, Google’s robots efforts will be led by Andy Rubin, who was formerly in-charge of Android. It is clear that Google is seriously — and rather suddenly — interested in robots. What isn’t clear, though, is why. Is Google planning some kind of synergistic and masterful play to integrate its AI and machine learning software algorithms with humanoid helper robots? Is this the start of a story that ultimately leads to the technological singularity and Judgment Day?