re: NASA scientists look for advanced aliens in 100,000 galaxies - no evidence

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The idea is that given enough time or the development of a benevolent singularity a civilization can develop the ability to colonize an entire galaxy. Sounds crazy at first but IIRC the numbers say that with self replicating probes it would be possible to colonize the Milky Way in something like 100,000 years

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Assuming a civilization reaches this hypothetical capability, what if they don't care to colonize more than necessary. It's like watching Star Wars and seeing all of these different alien species have the same motivations and reasoning as humans, then realize all our hypotheses about life and behavior is based on our own limited understanding of life on this planet. Again it's interesting, and has logic, but it's conjecture.