Reblog via ssweeny

“A human is, to a first approximation, a pillar of liquid about two meters high, in which are suspended various moist and jiggly biological systems ā€” digestion, waste storage, sense of balance, the movement of blood. All of these systems evolved in an environment where a 6-billion-trillion-ton sphere called Earth sat at the pillar’s foot.”

ā€” Kelly Weinersmith, Zach Weinersmith: A City on Mars, p. 43

Most of this book is about how settling space is much harder and less desirable than most people think. I’m glad it’s so funny because otherwise it would be too depressing for my nerd brain.

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