This episode was really depressing. I am glad that this show highlights potential abuses of technology to the extent highlighted in this episode as this was not

This episode was really depressing. I am glad that this show highlights potential abuses of technology to the extent highlighted in this episode as this was not something I even considered. Reading this article, it seems like we should be on the cusp of realizing this technology. Does anyone know if this will be hitting the mainstream in the next couple of years?