It's called the "grain," a small IoT device implanted into the back of people's skulls to record their memories. Human experiences are simply played back on "redo mode" using a smart button remote. The technology promises to reduce crime, terrorism and simplify human relationships with greater transparency. While this is a description of Netflix's Black Mirror episode, "The Entire History of You," in reality the concept is not as far-fetched as it may seem. This week life came closer to imitating art with the $19 million grant by the US Department of Defense to a group of six universities to begin work on "neurograins."