Hmmm. We could do a pre-apocalypse. If we did that though, it wouldn't have to be sci-fi. We could just say, for example, most of society was shipped by rocket to a space station before everything melted away. And a few, including ourselves (or not including, depending on how you wanted the plot to go) were left behind. That may be boring for you guys. Idk. I can't think. I want to be the oldest though, by however many minutes or seconds that would be, haha.