[Whew] No Galactic Superpowers - Wargaming Forum and Wargamer Forums
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post #1 of 14 (permalink) Old 06-07-15, 02:19 PM Thread Starter
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Default [Whew] No Galactic Superpowers

Well, we looked. We cannot see any evidence ("near" us) of entire galaxies being colonized fully.

Search for advanced civilizations beyond Earth finds nothing obvious in 100,000 galaxies


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After searching 100,000 galaxies for signs of highly advanced extraterrestrial life, a team of scientists using observations from NASA's WISE orbiting observatory has found no evidence of advanced civilizations in them. "The idea behind our research is that, if an entire galaxy had been colonized by an advanced spacefaring civilization, the energy produced by that civilization's technologies would be detectable in mid-infrared wavelengths -- exactly the radiation that the WISE satellite was designed to detect for other astronomical purposes," said Jason T. Wright, an assistant professor of astronomy and astrophysics at the Center for Exoplanets and Habitable Worlds at Penn State University, who conceived of and initiated the research.
...
"Our results mean that, out of the 100,000 galaxies that WISE could see in sufficient detail, none of them is widely populated by an alien civilization using most of the starlight in its galaxy for its own purposes. That's interesting because these galaxies are billions of years old, which should have been plenty of time for them to have been filled with alien civilizations, if they exist. Either they don't exist, or they don't yet use enough energy for us to recognize them," Wright said.
Basically, no obvious galaxies populated entirely by Dyson Spheres. To put scale in context, we could not have detected the Imperium, the Federation, or the Empire using this analysis.

Wealth is created when we use new knowledge to create new things or improve efficiencies.
This technology, along with people pondering applications using type three levers is literally a new mechanical revolution in waiting. There are going to be many patents, from people who're curious and can tinker.

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post #2 of 14 (permalink) Old 06-07-15, 02:36 PM
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They're assuming the galaxies would be colonized in a pretty specific way.


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post #3 of 14 (permalink) Old 06-08-15, 02:50 AM Thread Starter
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Well, they're looking for evidence of a specific hypothetical outcome. Other hypotheses would suggest different styles of evidence collection.

Wealth is created when we use new knowledge to create new things or improve efficiencies.
This technology, along with people pondering applications using type three levers is literally a new mechanical revolution in waiting. There are going to be many patents, from people who're curious and can tinker.

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post #4 of 14 (permalink) Old 06-08-15, 09:06 AM
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They didn't rule out a fleet of ships translating from the warp on the fringes of the Solar System though, did they?

www.communitycomp.org/

^ Balanced 40k!
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post #5 of 14 (permalink) Old 06-08-15, 02:18 PM Thread Starter
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Nope
Lots of people think that FTL would prevent a civilization from going Type 3. Type 3 comes out of a slower-than-light colonization that ripples out of the home planet and maximally co-opts each star colonized.

Wealth is created when we use new knowledge to create new things or improve efficiencies.
This technology, along with people pondering applications using type three levers is literally a new mechanical revolution in waiting. There are going to be many patents, from people who're curious and can tinker.

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post #6 of 14 (permalink) Old 06-08-15, 02:44 PM
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Sweet, that still gives us time to conquer their bacteria and caveman filled planets.


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post #7 of 14 (permalink) Old 06-12-15, 01:06 AM Thread Starter
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Maybe. This technique wouldn't have detected type II civs.

The upcoming James Webb Telescope (JWST) changes the question from 'intelligent life?' to 'life?'. That will be really interesting!

Quote:
We anticipate that TESS will find dozens of super Earths suitable for atmosphere observations by JWST, including several super Earths that could potentially be habitable. Life detection with the TESS–JWST combination
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4156723/

Wealth is created when we use new knowledge to create new things or improve efficiencies.
This technology, along with people pondering applications using type three levers is literally a new mechanical revolution in waiting. There are going to be many patents, from people who're curious and can tinker.

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post #8 of 14 (permalink) Old 06-12-15, 04:22 PM
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Any civ with the ability to travel FTL would probably have the means to prevent weaker civs from detecting them.
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post #9 of 14 (permalink) Old 06-12-15, 07:50 PM
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Still, let's say that the closest galaxy is about a 100.000 light-years away from us, that means that any information we get from that galaxy is from 100.000 years ago. This is not much on a cosmic scale, but allows a significantly advanced civilization a tremendous time to grow. Our own galaxy, the milky way, has no such civilization as described in it (yet), but when I look at what we humans have accomplished over the last decades and I can't begin to imagine what we could be capable of in 10.000 of them.
This study only shows that there were no galaxy-colonizing civilizations a 100.000 years ago in the very nearest galaxies, I think. There are only about 50 galaxies within 12 million light-years from us.
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post #10 of 14 (permalink) Old 07-01-15, 08:50 PM Thread Starter
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Yeah, there's no doubt that we can miss anyone that's popped up 'relatively' recently. But when there are gazillions of planets that are much older than Earth out there, that still means there are gazillions of opportunities for there to be vastly older civilizations.

Wealth is created when we use new knowledge to create new things or improve efficiencies.
This technology, along with people pondering applications using type three levers is literally a new mechanical revolution in waiting. There are going to be many patents, from people who're curious and can tinker.

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