tag:blogger.com,1999:blog-2639727933312309399.post4807536223285526758..comments2023-06-25T17:22:04.205+10:00Comments on Captain InterStellar: Part 6: Book Review - Prospects for Interstellar TravelPaul Titzehttp://www.blogger.com/profile/18289833231312747076noreply@blogger.comBlogger25125tag:blogger.com,1999:blog-2639727933312309399.post-61811234575315406732019-03-19T19:23:14.771+11:002019-03-19T19:23:14.771+11:00Oh! Wow its in fact a humorous and jockey YouTube ...Oh! 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But the children's same-age siblings would provide real interaction<<br /><br />And how exactly is a robot going to discipline a child? Mentor it? These are the real issues the author is talking about. Children model their behaviour on their closest adults. No adults, and you get Lord of the Flies. Furthermore, the damage of not having a human parent is permanent. If something goes wrong, the child grows up unable ever to acquire human speech or thought - this is the case with the many "wolf" children discovered in the wild. <br /><br />>Once clarified the robotic parents could draw from a very large database of appropriate responses to any of a large number (about 30,000) common scenarios.<<br /><br />How exactly is one going to prototype such a system? Will the public care to have some children grown in isolation for the next 18 years and see what happens? Maybe in a totalitarian or degenerate regime but not in any foreseeable democratic system.<br /><br />Assuming that the embryos (not to mention nanotech) would survive hundreds of years of hard radiation is another assumption. In fact, the embryos (or even zygotes) would be rendered non-viable by self-radiation from carbon decay in that time since they cannot be thawed to heal and repair radiation damage. Not to say it can't be done - but all this technological difficulty must be weighed against simply making the ship go faster.<br /><br />Finally, if one can boostrap a full-fledged industrial civilisation complete with robo-nannies from a probe massing less than ten tonnes, then one can just as easily build the energy resources to send a regular crewed ship in less than the time the embryonauts would.Troyhttps://www.blogger.com/profile/06628902929688764983noreply@blogger.comtag:blogger.com,1999:blog-2639727933312309399.post-17294282795677970632010-10-17T21:35:25.753+11:002010-10-17T21:35:25.753+11:00I meant to say 7% per year doubles the value of an...I meant to say 7% per year doubles the value of any given amount each decade.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2639727933312309399.post-27923945188653335542010-10-17T21:33:46.596+11:002010-10-17T21:33:46.596+11:00What about the resource use to build a craft like ...What about the resource use to build a craft like this? I mean that such a mission, would be so costly.<br /><br />Also our civilisation is quite fragile. Remember, an increase of 7% a year doubles the requirement, the demand, the extraction, etc of the resource. The world's population and developing nations economies are growing so fast as to use up all the oil currently discovered, in 36 years. And even if they discover all of what the earth could in theory supply, it is sure to run out given that demand is also rising, so perhaps 50 years from 2010 there will be fuel rationing. So what will follow the age of oil? The age of gas, all gone by 2100 perhaps, then a return to coal. All gone by mid-century as long as the earth's population is severely reduced by the lack of oil to produce food, hygiene and medicine. So at some point, we will be living on nuclear power and renewable energy, but without any real substitutes for portable fuels on the same scale we have now. Without portable fuels that are economic the costs of building any technology will be hugely more expensive. So how would building a spaceship of this magnitude ever happen when we'll be more like pauper stone age hunter/gatherers with nukes and wind power? <br /><br />I think humans are unlikely to resist the tides of history that are driven by energy, water and food related wars, and thus will perish from natural disasters, either extra-terrestial bollides or supervolcanoes, or even climate change. And even if they survive it will be small scale, post apocalyptic in nature. <br /><br />So if we're going to do this, I suggest we start right now whilst we still live in the happy age of oil.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2639727933312309399.post-61605959069089636782010-02-11T20:42:44.974+11:002010-02-11T20:42:44.974+11:00Michael wrote:
> maybe you could turn the back...Michael wrote:<br /><br />> maybe you could turn the background down a > bit more?<br /><br />Done.Paul Titzehttps://www.blogger.com/profile/18289833231312747076noreply@blogger.comtag:blogger.com,1999:blog-2639727933312309399.post-63324708559220654952010-02-10T22:57:19.444+11:002010-02-10T22:57:19.444+11:00Nice job, and a small request: maybe you could tur...Nice job, and a small request: maybe you could turn the background down a bit more? Thanks…Unknownhttps://www.blogger.com/profile/07724577277456770087noreply@blogger.comtag:blogger.com,1999:blog-2639727933312309399.post-3141992415086086332010-02-10T18:55:04.507+11:002010-02-10T18:55:04.507+11:00The discussion addresses but fails to fully analyz...The discussion addresses but fails to fully analyze the frozen embryo option. Frozen embryos require none of the life-support processes which living adults need. Hence, almost all of the problems of space travel mentioned are minimized. However, those problems are traded for the difficulty of robotic childrearing.<br /><br />It is mentioned:<br />> reminds me of the nurse robots in The Matrix movie which grow humans for other purposes<br /><br />This is a straw man. Frozen embryos don't need to be nursed during transit. They just need to remain frozen until they reach destination. "Seeing them through to adulthood" does not necessarily have to be done on the ship but on the planet after destination is reached. Why even presume childrearing must be done on the ship? It makes no sense.<br /><br />> but most importantly: "there is plenty of evidence that children developing without commited human parents come out lacking essential qualities.<br /><br />This is a vague statement. Robotic parents could look exactly like real parents. They could move exactly like real people. They could be programed to replay interaction between themselves exactly like their real equivalents. Their eyes could track the children and they could reach out and touch and pick up the children. They could praise, exhort, sing, yawn, explain, teach, etc. They could wipe butts, pick up toys, bottle feed, burp, hand food, even rock a child to sleep.<br /><br />What they would have difficulty doing is intelligently responding verbally to the children. But the children's same-age siblings would provide real interaction. The android parents would have to be programmed to respond as well as possible. This might be similar to being raised by deaf parents who sometimes misinterpret lip-reading and so respond somewhat inappropriately. But normal children of deaf parents generally turn out fine. Perhaps the robotic parents could clarify what the child is asking or wanting. Once clarified the robotic parents could draw from a very large database of appropriate responses to any of a large number (about 30,000) common scenarios.<br /><br />Although the parenting would therefore not be perfect, it would be unfair to say that the children would be raised in an environment of uncommitted parents. Indeed, robotic parents would be more attentive to the children than regular parents.<br /><br />A frozen embryo mission could travel slower than a mission with living crew. Superconducting magnetic shielding could address much of the radiation risk.JohnHunthttps://www.blogger.com/profile/05222271151815039554noreply@blogger.com