--- Log opened Sat Apr 27 00:00:38 2024
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01:46 < nsh> how does one gauge concerns such as this: https://www.dailymail.co.uk/sciencetech/article-13324923/elon-musk-satellite-earth-magnetic-field.html
01:46 < nsh> .t
01:46 < saxo> Elon Musk's Starlink satellites could be eroding Earth's magnetic field and slowly poisoning us all, ex-NASA scientist warns | Daily Mail Online
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02:48 < fenn> DHS "Artificial Intelligence Safety and Security Board" is just the 2024 round of buzzword compliance
02:48 < fenn> quite literally as the executive order 14110 requires them to present an AI safety plan, even though it doesn't mean anything
03:02 < fenn> re: starlink, conductive metal particles in orbit do not mean there is a conductor that wraps around the globe like a long wire coil. i don't understand why she thinks debye shielding is relevant; earth's biosphere is shielded by the mass of the atmosphere
03:04 < fenn> mars' atmosphere evaporated due to "jeans escape" - the velocity at the high end of the temperature distribution is greater than orbital escape velocity. the magnetic field only has a tiny effect compared to that, say a few percent of the total
03:08 < fenn> i didn't see any calculation relating the change in debye length to atmospheric loss rate, or really a coherent argument of any kind beyond "more study is needed"
03:12 < fenn> "slowly poisoning us all" seems to have been added by the daily mail
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09:51 < gwillen> the poisoning part appears to be referring to loss of shielding against cosmic rays
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09:53 < gwillen> ... although now I'm confused about whether that is an actual thing.
09:53 < hprmbridge> alonzoc> Tbh the daily mail likes articles like these, and there's a cottage industry in coming up with reasons to have a go at SpaceX
09:54 < gwillen> yeah the daily mail is a source of zero or negative useful information
09:54 < gwillen> I'm more curious about the underlying research.
09:55 < hprmbridge> alonzoc> I'm mostly disappointed in the slow decay of NASAs credibility with the constant flow of "NASA scientist says" (mostly with respect to reactionless drives) and "exNASA says"
09:57 < gwillen> this seems to be the actual paper: https://arxiv.org/abs/2312.09329
10:13 < hprmbridge> alonzoc> Okay I'm kind of getting the whole increase in ions. But why bring the dinosaurs into it at the end? Yeah they died from "dust" but it wasn't about loosing the magnetic field. This reads overly alarmist to me, and I'd like an explanation for the linear proportionality argument as the electron Debey length squared (which is the data they show an upward trend in) is linked to the ratio of
10:13 < hprmbridge> alonzoc> temperature and electron density. So if this is legit at the least they should give a derivation for why a linear extrapolation is correct especially when we're saying the mass will increase by an order of magnitude
10:14 < hprmbridge> alonzoc> sqrt vs linear growth in that situation will be very different
10:24 < hprmbridge> alonzoc> I'm also skeptical that the mass we're putting up is meaningfully going to shield earths magnetic field. They just go "conductive shell goes brr" without doing the maths to actually calculate the potential impact for a given level of dust
12:07 < TMA> "I had an idea and then I did some calculations and I was wrong" does not produce the right kind of headline
12:24 < hprmbridge> alonzoc> Also looks like their first arxiv paper
12:24 < hprmbridge> alonzoc> (and only)
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17:18 < hprmbridge> kanzure> chimpanzee organ transplants without immunosuppressants https://twitter.com/tesavova/status/1784368705893228780
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20:55 < fenn> long range technological forecast predictions from 1964 https://www.rand.org/content/dam/rand/pubs/papers/2005/P2982.pdf
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22:34 < fenn> Big Chimpanzee doesn't want you to know about the origin of AIDS
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23:01 < fenn> well this RAND forecast from 1964 is pretty depressing because it looked like we should have had everything by the 1990s
23:01 < fenn> and i can't really say that they were wrong
23:14 < geneh2> except for centralized wiretapping, that's not supposed to happen ever
--- Log closed Sun Apr 28 00:00:39 2024