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Yes, space will challenge us, have no doubt, but this is the very challenge humanity needs to cure us of our propensity for bullshit — because space is where bullshit goes to die. Out there only facts and competence keep you alive. Superstition, uneducated guesses, and comforting lies are what must go extinct. Not us.

At issue is not whether the global economy will pass away. It is passing away. Rising populations and debt combined with depletion of freshwater sources and fossil fuel make the status quo untenable. The only question is whether civil society will survive the transition.

But if they're so successful, why haven't parasites taken over the world? The answer is simple: they have. We just haven't noticed. That's because successful parasites don't kill us; they become part of us, making us perform all the work to keep them alive and help them reproduce.

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"Sexual reproduction exists solely as a means to defeat parasites. By mixing male and female genes, sex produces offspring not exactly like either the male or female — making each generation different from the last, and presenting a moving target to intruders intent on compromising this system. "Even with this variation, parasites continue to pose a threat