“It would be a pity if, frustrated by the price of travel, we elected to become a society that never made contact, that never gave SETI a fair chance.”
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If interstellar travel is as time- or energy- demanding as the above figures indicate, it is far from obvious what the motive for colonization might be.
Greater personal choice, individually tailored services, stronger local accountability, greater efficiency - these are all central to the new direction of travel we have set for our public services.
Almost 70 percent of U.S. ag exports travel the upper Mississippi River and the Illinois waterway system.
I'd like to be able to travel anywhere in an instant.