I loved this episode. It's well acted and very well written. More then that is the fact it's such an unusual story..it's a very intriguing concept. I'd give this 4 stars easy...one of the more interesting episodes.  Excellent! I can't elaborate as to the specifics any better than Russell has already. This tale is an excellent representation of how the future is cautiously represented. There have been so many tales that have played on this theme. Twilight zone, Night Gallery, The outer limits, "Back to the future"