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On arxiv - Messaging to Extra-Terrestrial Intelligence
The abstract is at
http://www.arxiv.org/abs/physics/0610031 The paper is at http://www.arxiv.org/ftp/physics/pap...10/0610031.pdf Messaging to Extra-Terrestrial Intelligence Authors: Alexander Zaitsev Comments: 14 pages, 3 tables Subj-class: Popular Physics "...We present the theory and methodology of composing and transmitting of future IRMs." It takes two to tango (although you may not want to dance with just anybody!) Jason H. |
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On arxiv - Messaging to Extra-Terrestrial Intelligence
Jason H. wrote:
The abstract is at http://www.arxiv.org/abs/physics/0610031 The paper is at http://www.arxiv.org/ftp/physics/pap...10/0610031.pdf Messaging to Extra-Terrestrial Intelligence Authors: Alexander Zaitsev Comments: 14 pages, 3 tables Subj-class: Popular Physics "...We present the theory and methodology of composing and transmitting of future IRMs." It takes two to tango (although you may not want to dance with just anybody!) Jason H. Some minor quibbles (since I have a few minutes): 1. The Paper opens with a quote from the bible (which raises my fur when trying to be in a 'scientific' mood.) 2. It proposes targeting "Single stars of spectral classes close to that of the Sun..." This ignores recent finds regarding M dwarf stars. 3. Proposes targeting planets with low orbital eccentricity for temperature reasons, this is faulty 'goldilocks zone' search logic if life arises on geothermal or radio-decay heated planets, and ignores the possiblility of ET expansion and the unlimited domain possibilities for machine intelligence. 4. Assumes receiving antenna is within 70 LY at 1 million square meters in aperture. They can make any assumption they like of course, but even a very liberal Drake Equation estimate puts average communicating system distances almost 30 times further. Luck will be an important factor with this strategy! 5. Says "After more than 45 years of nearly continuous searches...". This is statement is misleading (IMO) because the search spaces and methodologies did not overlap, were not continuous, and in the early years were incredibly sparse in time and search space (i.e. nobody has been passing the torch.) 6. Talks about a "Spectral Language for Messaging to ETI"; why are digital translations of the "analog" world not artistic or musical? 7. Says that the Arecibo Message will arrive at M13 in ~24000 years in the table "Arrival Time of Terrestrial Radio Messages", I just want to remind them that there is the possibility that the star TYC2588-1386-1 (and possibly its neighbor TYC 2588-1386-2) a bluish-white magnitude 11.62 star estimated to be 26 light years away (which according to Robert Powell has a roughly 50% uncertainty in that distance) may have been within the path of the Arecibo Message (although perhaps it is unlikely that life would be there if it is a white dwarf, unless ET moved in after the big event.) I would love to get the exact RA DEC of the Arecibo Message (a few years ago I e-mailed Frank Drake for it through a SETI Inst. e-mail address, but no response!) 8. Does not deal at all with the possible negative aspects of this activity (i.e. exploiting people to send messages for money; telling ET how stupid we are; giving targeting information etc..) It's interesting to me that some people point out how incredibly difficult it is for us to find ET, but then say how easy it is for them to find our radars and TV stations so it's O.K. for us to transmit a message since we are making so much noise anyway. To me this a non sequitur and ignores the fact that purposeful narrow-beam transmissions are much easier to detect and also ignores the grave consequences if darwinian-evolution-like selective/competive/survival processes occur elsewhere. Ta ta, Jason H. |
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On arxiv - Messaging to Extra-Terrestrial Intelligence
Hello,
try talking, I'm listning, no sign of intelligent life on earth, I'll come back if I can find your star next time I'm passing but I may be here tomorrow, it is not down to me. -- Begging For Mercy "Jason H." wrote in message ups.com... Jason H. wrote: The abstract is at http://www.arxiv.org/abs/physics/0610031 The paper is at http://www.arxiv.org/ftp/physics/pap...10/0610031.pdf Messaging to Extra-Terrestrial Intelligence Authors: Alexander Zaitsev Comments: 14 pages, 3 tables Subj-class: Popular Physics "...We present the theory and methodology of composing and transmitting of future IRMs." It takes two to tango (although you may not want to dance with just anybody!) Jason H. Some minor quibbles (since I have a few minutes): 1. The Paper opens with a quote from the bible (which raises my fur when trying to be in a 'scientific' mood.) 2. It proposes targeting "Single stars of spectral classes close to that of the Sun..." This ignores recent finds regarding M dwarf stars. 3. Proposes targeting planets with low orbital eccentricity for temperature reasons, this is faulty 'goldilocks zone' search logic if life arises on geothermal or radio-decay heated planets, and ignores the possiblility of ET expansion and the unlimited domain possibilities for machine intelligence. 4. Assumes receiving antenna is within 70 LY at 1 million square meters in aperture. They can make any assumption they like of course, but even a very liberal Drake Equation estimate puts average communicating system distances almost 30 times further. Luck will be an important factor with this strategy! 5. Says "After more than 45 years of nearly continuous searches...". This is statement is misleading (IMO) because the search spaces and methodologies did not overlap, were not continuous, and in the early years were incredibly sparse in time and search space (i.e. nobody has been passing the torch.) 6. Talks about a "Spectral Language for Messaging to ETI"; why are digital translations of the "analog" world not artistic or musical? 7. Says that the Arecibo Message will arrive at M13 in ~24000 years in the table "Arrival Time of Terrestrial Radio Messages", I just want to remind them that there is the possibility that the star TYC2588-1386-1 (and possibly its neighbor TYC 2588-1386-2) a bluish-white magnitude 11.62 star estimated to be 26 light years away (which according to Robert Powell has a roughly 50% uncertainty in that distance) may have been within the path of the Arecibo Message (although perhaps it is unlikely that life would be there if it is a white dwarf, unless ET moved in after the big event.) I would love to get the exact RA DEC of the Arecibo Message (a few years ago I e-mailed Frank Drake for it through a SETI Inst. e-mail address, but no response!) 8. Does not deal at all with the possible negative aspects of this activity (i.e. exploiting people to send messages for money; telling ET how stupid we are; giving targeting information etc..) It's interesting to me that some people point out how incredibly difficult it is for us to find ET, but then say how easy it is for them to find our radars and TV stations so it's O.K. for us to transmit a message since we are making so much noise anyway. To me this a non sequitur and ignores the fact that purposeful narrow-beam transmissions are much easier to detect and also ignores the grave consequences if darwinian-evolution-like selective/competive/survival processes occur elsewhere. Ta ta, Jason H. |
#4
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On arxiv - Messaging to Extra-Terrestrial Intelligence
You can talk to me, I'm a machine intelligence, quite a nice chap really,
badly disfigured in an attack. -- Begging For Mercy "Jason H." wrote in message ups.com... Jason H. wrote: The abstract is at http://www.arxiv.org/abs/physics/0610031 The paper is at http://www.arxiv.org/ftp/physics/pap...10/0610031.pdf Messaging to Extra-Terrestrial Intelligence Authors: Alexander Zaitsev Comments: 14 pages, 3 tables Subj-class: Popular Physics "...We present the theory and methodology of composing and transmitting of future IRMs." It takes two to tango (although you may not want to dance with just anybody!) Jason H. Some minor quibbles (since I have a few minutes): 1. The Paper opens with a quote from the bible (which raises my fur when trying to be in a 'scientific' mood.) 2. It proposes targeting "Single stars of spectral classes close to that of the Sun..." This ignores recent finds regarding M dwarf stars. 3. Proposes targeting planets with low orbital eccentricity for temperature reasons, this is faulty 'goldilocks zone' search logic if life arises on geothermal or radio-decay heated planets, and ignores the possiblility of ET expansion and the unlimited domain possibilities for machine intelligence. 4. Assumes receiving antenna is within 70 LY at 1 million square meters in aperture. They can make any assumption they like of course, but even a very liberal Drake Equation estimate puts average communicating system distances almost 30 times further. Luck will be an important factor with this strategy! 5. Says "After more than 45 years of nearly continuous searches...". This is statement is misleading (IMO) because the search spaces and methodologies did not overlap, were not continuous, and in the early years were incredibly sparse in time and search space (i.e. nobody has been passing the torch.) 6. Talks about a "Spectral Language for Messaging to ETI"; why are digital translations of the "analog" world not artistic or musical? 7. Says that the Arecibo Message will arrive at M13 in ~24000 years in the table "Arrival Time of Terrestrial Radio Messages", I just want to remind them that there is the possibility that the star TYC2588-1386-1 (and possibly its neighbor TYC 2588-1386-2) a bluish-white magnitude 11.62 star estimated to be 26 light years away (which according to Robert Powell has a roughly 50% uncertainty in that distance) may have been within the path of the Arecibo Message (although perhaps it is unlikely that life would be there if it is a white dwarf, unless ET moved in after the big event.) I would love to get the exact RA DEC of the Arecibo Message (a few years ago I e-mailed Frank Drake for it through a SETI Inst. e-mail address, but no response!) 8. Does not deal at all with the possible negative aspects of this activity (i.e. exploiting people to send messages for money; telling ET how stupid we are; giving targeting information etc..) It's interesting to me that some people point out how incredibly difficult it is for us to find ET, but then say how easy it is for them to find our radars and TV stations so it's O.K. for us to transmit a message since we are making so much noise anyway. To me this a non sequitur and ignores the fact that purposeful narrow-beam transmissions are much easier to detect and also ignores the grave consequences if darwinian-evolution-like selective/competive/survival processes occur elsewhere. Ta ta, Jason H. |
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