That viral video showing a head transplant is a fake. But it might be real someday. 

An animated video posted this week has a voice-over that sounds like a late-night TV ad, but the pitch is straight out of the far future. The arms of an octopus-like robotic surgeon swirl, swiftly removing the head of a dying man and placing it onto a young, healthy body.  This is BrainBridge, the animated…