For those of you who haven't a clue what I am referring to, this is what I mean. If you seen DragonBall Z, there is a item on there known as a scouter. Is supposed to display a person's "Power Level" To determine how strong someone is. There exist stuff like this in some other media but is not for the same purpose. We even have something like this in real life called Google Glass, again not same purpose. But what if this was real, and it did work. If you used one, what kind of statistic of a person you wish to see besides a "power level?" Me personally I would hope to see something like to see how long a person will live before they die (By natural death not, enforced such as accident or intentional homicide.) It would be interesting to see how health and persons diet influence their timer on dying.