von Neumann probeserror catastrophegalactic colonizationIt has been argued that self-replicating robotic probes could spread to all stars of our galaxy within a timespan that is tiny on cosmological scales, even if they travel well below the speed of light. The apparent absence of such von ...
I spent the second year doing much of the same things, but a decent amount of the sheen of the do nothing lifestyle had worn off. Most of the people I had spent my years in school with had now gone off to college, and here I was still stuck even though I had graduated before the...