tag:blogger.com,1999:blog-6753820.post4137130891880864756..comments2023-10-30T04:16:25.917-04:00Comments on Sentient Developments: New theory may explain why radio SETI has failedGeorgehttp://www.blogger.com/profile/13003484633933455827noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-6753820.post-32257766981678966582012-01-26T10:47:09.708-05:002012-01-26T10:47:09.708-05:00it may also be due to increased signal degradation...it may also be due to increased signal degradation over greater distances which turns our signals (as well as et's) into noise. there are probably practical (and perhaps insurmountable) limits to the distance that any civilization may colonize outside it's home solar system (velocity limitations due to the theory of special relativity, as well as limitations due to bone demineralization, fueling difficulties and ship maintenance and repair, the danger of high velocity impacts to spacecraft from even small objects, radiation exposure, etc.)christina knighthttps://www.blogger.com/profile/06999704179848524225noreply@blogger.comtag:blogger.com,1999:blog-6753820.post-22828146316201602152009-05-03T05:07:00.000-04:002009-05-03T05:07:00.000-04:00They aren't here because the earth is unremarkable...They aren't here because the earth is unremarkable. Humans seem to have a hard to dealing with our unspecial-ness. If I may use an old analogy: Would you bother going out to observe some anthill way out in the fields if there are a 1000 anthills much closer to home that are almost exactly alike? You might walk past an anthill once, note its location and then move on. Aliens could have been here a millions times over the past millenia. Very inlikely they must be here NOW, within this tiny speck of time we have been watching. Also, communication mediums change and the odds of us catching a radio comm-ring of some civ within this tiny spec of time is remote.Jacknoreply@blogger.comtag:blogger.com,1999:blog-6753820.post-36769871581120056772009-03-23T11:13:00.000-04:002009-03-23T11:13:00.000-04:00Why would a civilization send a message through or...Why would a civilization send a message through ordinary 3 dimensional space when there are far better and faster ways? "The fault; dear Brutus; lies not in the stars"...The Fight the Right Coalitionhttps://www.blogger.com/profile/03375047404357496697noreply@blogger.comtag:blogger.com,1999:blog-6753820.post-47583417838703416932009-02-06T12:46:00.000-05:002009-02-06T12:46:00.000-05:00While I share people's frustration with the lack o...While I share people's frustration with the lack of any evidence of advanced civilizations in the galaxy, I think that's all it is: frustration, born of impatience. For me, the "great silence" might just as well be called "The great lack of immediate gratification in our brief and perfunctory search for ETI"Chrishttps://www.blogger.com/profile/02303755181174414108noreply@blogger.comtag:blogger.com,1999:blog-6753820.post-69102981629941664402009-02-06T01:51:00.000-05:002009-02-06T01:51:00.000-05:00As I said in my review of Rare Earth, the Rare Ear...As I said in <A HREF="www.setileague.org/reviews/rarearth.htm" REL="nofollow">my review of Rare Earth</A>, the Rare Earth theory is neither hypothesis nor prediction, but merely a description of how life arose on Earth. One of the major consultants for the book, Guillermo Gonzalez, is a creationist who presented his religious views as scientific facts.<BR/><BR/>The Rare Earth theory is not emerging, it's subsiding. As instruments and techniques get better, we will find earth-like planets -- we are on the verge. At that time, I hope that this bogus "theory" will finally be laid to its well-deserved rest along with its sibling, the anthropic principle.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6753820.post-34853360467201715652009-02-05T12:19:00.000-05:002009-02-05T12:19:00.000-05:00I think the minimum density is 300 CC's in the gal...I think the minimum density is 300 CC's in the galactic neighborhood (10,000 light year radius), which is just a small fraction of the entire galaxy.guymachttps://www.blogger.com/profile/16274821070002213899noreply@blogger.comtag:blogger.com,1999:blog-6753820.post-61450567758884421002009-02-04T23:56:00.000-05:002009-02-04T23:56:00.000-05:00Very interesting. Here's a theory I had about the ...Very interesting. <BR/><BR/>Here's a theory I had about the reason why the universe seems so empty:<BR/><BR/><A HREF="http://michaelgr.com/2008/05/09/virtual-reality-could-explain-the-fermi-paradox/" REL="nofollow">http://michaelgr.com/2008/05/09/virtual-reality-could-explain-the-fermi-paradox/</A>Anonymousnoreply@blogger.com