Science has taken many of our
putative identities and melted them together. But we are jealous of our human
identities. Those, we’d like to think are different. We’d like to keep them
intact and persistent. Given what we know, is that a fool’s errand?

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Space Colonization and the Meaning of Life
Colonizing the galaxy is the highest good humanity could achieve.
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The Surprising Importance of Stratospheric Life
The science of bacteria in the atmosphere is getting its moment in the sun.