Totally off topic, but I don't think the events will be "unforeseen". There are so many plausible predictions of what the future will hold, it's unlikely we will be surprised. At least, science fiction readers won't be surprised. My personal bet is that Star Trek has the closest thing to accurate future-history. We go through some really bad times, then master fusion technology and suddenly there is enough of everything to go around. Clearly we have a lot of growing to do before being in a post-scarcity world means that everyone is well cared for. Fingers crossed.