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Tag Archives: Earth emmigation

The loftiest purpose of space travel is to ensure the survival of the human species; having all of us living on one planet is just too risky. Science fiction author Robert Heinlein said it best through his Lazarus Long character:

When a place gets crowded enough to require ID’s, social collapse is not far away. It is time to go elsewhere. The best thing about space travel is that it made it possible to go elsewhere.

Sooner or later, some event or combination of events is going to cause the complete collapse of the house of cards that is modern civilization. The list of potentially catastrophic events is long, strange, and growing constantly. These events fall into two categories: natural and human-caused.

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