Microsoft in 2019 concept video

Judging the comments following this video, it's easy for naysayers to dismiss this as too far advanced to exist by 2019. Realistically though, new  technologies  are coming to market at exponential rates.

Original iPhone (June, 2007)

One has only to consider how one would respond to being asked go backwards proportionally and revert to using the now unthinkably slow and clunky-seeming technologies of 2003  to realize how rapidly technology is evolving. How easy it is to forget the now-ubiquitous iPhone wasn't introduced until 2007.

For example, the technology shown in the beginning of this video with the children using simple graphics that act out logical consequences (in this case the drawn dog chasing the ball) is based on existing interactive digital white board technology being currently developed at MIT's Media Lab and reported earlier in this blog as being primed to be snatched up for commercial development.