(sound of desert wind) [0:01] Narrator: Sometimes it seems like our future is doomed. Climate change, killer viruses, nuclear holocaust… there are too many ways our species could flicker and die out like a sputtering candle in the dark. Dystopian movies about the future, like 2015’s “Mad Max, Fury Road,” reflect this bleak outlook. (movie trailer clip: “Mad Max Fury Road”) “In this wasteland, I am the one who runs from both the living and the dead. A man reduced to a single instinct: survive.” [0:38] Narrator: Up until now, much of this season’s podcast has been about asteroids…