Slashdot Mirror
Fewer Than 10 ET Civilizations In Our Galaxy?
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."
in slashdot geek compound, one person's asshole is another person's cock socket!
Do you even lift?
These aren't the 'roids you're looking for.
You should know the universal greeting as actually Bah Weep Graaagnah Wheep Ni Ni Bong
bomb the us up set someone
We prefer the term Earthicans
bomb the us up set someone
Car Deal: http://www.youtube.com/watch?v=FNmi-bBhWG8
This patently false: not only is space unfathomably vast, but so is _TIME_. A civilization could have been born, grown, flurished and _died_ right next door 1 million years ago and we would _never_ know about it.
No need even to go next door, could've happened right here on earth. I still find it hard to believe that something such as dinosaurs, which we know occupied most of the planet, weren't some sort of civilised life. By now all anthropologic data about their civilisation would be lost anyway, we can hardly find the Mayan pyramids and that was only a few thousand years ago.
It's still an idea. Anyway, it still doesn't preclude that aliens could have technology that manipulates time or space even if we don't. And additionally, its only talking about our galaxy, not the whole universe.
...when Quetzalcoatl/Jesus/Osiris/Thoth/Viracocha get back here...
Except that Jesus Christ is the only one in your list who is going to come back because he is not dead, but was resurrected.
All theory is gray