The Hypothesis of Tipler and Brin of Dynamic Civilizations
摘要
At this point, a final consideration is mandatory: until now we have only considered the case where a civilization forms and develops on its own home planet and moves ONLY TO ESCAPE A POTENTIALLY CATASTROPHIC DANGER due to one of the seven challenges; we have thus ignored the scenario analyzed by Tipler (1980) and Brin (1983) of a civilization that, at a certain point in its development, freely decides to colonize the galaxy. How and when would such a scenario present itself?