In 79 years, I'll probably be dead. So will the vast majority of our readers, save for the little arseholes on Xbox Live. For reader Jeremy (not an arsehole!), 79.9 years is apparently how long it will take him to reach "Prestige" in Call of Duty.
Prestige is, of course, the highest ranking CoD players can reach in mulitplayer, and it is unlocked after the player reaches Level 55. Which is what Jeremy will do in the year 2090 or 2091, depending on how you calculate it.