Fewer Than 10 ET Civilizations In Our Galaxy? 642
Al writes "The Fermi Paradox focuses on the existence of advanced civilizations elsewhere in the galaxy. If these civilizations are out there — and many analyses suggest the galaxy should be teeming with life — why haven't we seen them? Carlos Cotta and Álvaro Morales from the University of Malaga in Spain investigate another angle by considering the speed at which a sufficiently advanced civilization could colonize the galaxy. Various analyses suggest that using spacecraft that travel at a tenth of the speed of light, the colonization wavefront could take some 50 million years to sweep the galaxy. Others have calculated that it may be closer to 13 billion years, which may explain ET's absence. Cotta and Morales study how automated probes sent ahead of the colonization could explore the galaxy. If these probes left evidence of a visit that lasts for 100 million years, then there can be no more than about 10 civilizations out there."
Too Many Free Variables (Score:5, Funny)
Fewer Than 10 ET Civilizations In Our Galaxy?
All this is assuming that we would know immediately if there were a 50-100 million year old alien probe in our solar system's backyard. Stack that on top of all the non-empirical data based percentages that go into the Fermi paradox and ...
*puts on Twilight Zone music*
Human beings are the alien probe!
And man, we had better start compiling that report that's due when Quetzalcoatl/Jesus/Osiris/Thoth/Viracocha get back here. He's gonna be pissed when he sees that we just threw a huge party and trashed the place instead of assessing the resources!
ever since moo (Score:4, Funny)
Nonsense... (Score:2, Funny)
We should start bumping into Vulcans in about 54 years... Zefram Cochrane should be born pretty soon... then we'll know.
Re:Too Many Free Variables (Score:3, Funny)
I at least hope they're getting a good laugh.
Re:Too Many Free Variables (Score:4, Funny)
Why doesn't Ross, the bigger of the 'Friends', simply just EAT the other two?! - Omicron Persei 8
Re:Too Many Free Variables (Score:1, Funny)
And man, we had better start compiling that report that's due when Quetzalcoatl/Jesus/Osiris/Thoth/Viracocha get back here. He's gonna be pissed when he sees that we just threw a huge party and trashed the place instead of assessing the resources!
"Mostly Harmless". ...done.
Re:ever since moo (Score:5, Funny)
Re:There is no god (Score:3, Funny)
Re:Too Many Free Variables (Score:2, Funny)
Human beings are the alien probe!
Only in Soviet Russia.
And man, we had better start compiling that report that's due when Quetzalcoatl/Jesus/Osiris/Thoth/Viracocha
I think Xenu was the project manager on that one.
Re:Too Many Free Variables (Score:5, Funny)
Re:Too Many Free Variables (Score:5, Funny)
Cheers!
Re:ever since moo (Score:3, Funny)
Funny, that's the first thing I thought, too. I hope the friggin' Meklars aren't playing.
Comment removed (Score:3, Funny)
Re:Too Many Free Variables (Score:5, Funny)
Human beings are the alien probe!
Oh no! I don't want to be shoved up anything's ass!
Re:Too Many Free Variables (Score:5, Funny)
Re:Too Many Free Variables (Score:5, Funny)
Re:ever since moo (Score:1, Funny)
The Real problem is that we're stuck playing the Humans
Remember the parable of the G'Gugvuntts and Vl'hur (Score:2, Funny)
When thinking of whether we humans would be able to detect the arrival of an alien probe, we should all mediate on the parable of the G'Gugvuntts and Vl'hurgs:
... [t]he two opposing battle fleets decided to settle their few remaining differences in order to launch a joint attack on our galaxy, now positively identified as the source of the offending remark. For thousands of years the mighty starships tore across the empty wastes of space and finally dived screaming on to the planet Earth - where, due to a terrible miscalculation of scale, the entire battle fleet was accidentally swallowed by a small dog. Those who study the complex interplay of cause and effect in the history of the Universe say that this sort of thing is going on all the time.
Re:Too Many Free Variables (Score:2, Funny)
All this is assuming that we would know immediately if there were a 50-100 million year old alien probe in our solar system's backyard.
Yes. There could be half a bajillion alien probes in the Kuiper belt, transmitting the latest antics of the Earthlings right to GalaxyTV, and we'd have no idea.
OF course we'd have an idea: the RIAA and MPAA would have sent all the alien TV shows DMCA Takedown notices. . . .
Re:Too Many Free Variables (Score:5, Funny)
Commander Xygzymmr,
Probe designate r_jensen11 appears to be defective. We should pick him up on our next maintenance run for reprogramming. Recommend Regimen 7: "Probe 'em till he'd rather be the probe".
- Engineer Morpsyx
Re:Assumptions (Score:3, Funny)
you can say people are bad at somethings, but everyone has to admit we're really good at killing other stuff
Or we'll kill them.
Re:Too Many Free Variables (Score:2, Funny)
At last things make sense!
Re:Too Many Free Variables (Score:5, Funny)
Re:What if... (Score:3, Funny)
Re:Too Many Free Variables (Score:0, Funny)
I distinctly hear an apostrophe in that phrase!
Re:ever since moo (Score:3, Funny)
Personally, I'm still waiting for evidence there is *one* civilisation in this galaxy.
OH SNAP! You certainly told humanity! On a post on Slashdot no less!
Re:Civilizations? (Score:2, Funny)
How fast did the Borg spread? Can't we use that as a rough estimate?
Well, MS-DOS 1.0 dates to 1982, and Windows 3.0 was released in May 1990. Windows NT 3.5 was in Sept 1994 - 'tho' I had a Beta one year earlier...
At that rate we'd be screwed!
But I see a plateau after Windows XP. It looks like the transition from a numerically incremental taxonomy slowed them down somewhat.
Perhaps we've breathing room, and time to plan our counter offensive?
Re:Orion's Arm - not so much (Score:1, Funny)