RE: Aliens (extra-terrestrials)?
July 13, 2015 at 10:51 am
(This post was last modified: July 13, 2015 at 10:56 am by Anomalocaris.)
(July 12, 2015 at 5:46 pm)vorlon13 Wrote: It only takes a single instance of a 'pave the galaxy' alien to get a paved over galaxy. If you're thinking billions of worlds developed life = or superior to us, where's the concrete ??
Now if there are only a few, or just us, technological civilizations, an otherwise empty galaxy (which is what Borowitz etal is finding, BTW) is to be expected.
The implicit assumption is paving over the galaxy (in a way detectable to us) would remain a good use of a civilization'so resources for long enough period of time to allow at least some civilizations to actually pave over the Galaxy. I don't think that assumption is necessarily a strong one.