If the world isn't changing now, when we know full well that we're running out of petroleum and not getting food, which we apparently have in abundance, to those who need it, why do you think that the whole human race will change its ways in the future? What leads you to believe that we'll suddenly realize that, "oh, wow, we have tons of food! Let's divide it evenly! Wow, isn't this great??" and "Oh, look at this nifty fuel cell, let's give one to EVERYBODY!!"?? Seriously, the human race is not that advanced as a whole. Overpopulation of that severity would surely cause massive starvation and energy crises.
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