nhaliday + xenobio   28

Eternity in six hours: intergalactic spreading of intelligent life and sharpening the Fermi paradox
We do this by demonstrating that traveling between galaxies – indeed even launching a colonisation project for the entire reachable universe – is a relatively simple task for a star-spanning civilization, requiring modest amounts of energy and resources. We start by demonstrating that humanity itself could likely accomplish such a colonisation project in the foreseeable future, should we want to, and then demonstrate that there are millions of galaxies that could have reached us by now, using similar methods. This results in a considerable sharpening of the Fermi paradox.
pdf  study  article  essay  anthropic  fermi  space  expansionism  bostrom  ratty  philosophy  xenobio  ideas  threat-modeling  intricacy  time  civilization  🔬  futurism  questions  paradox  risk  physics  engineering  interdisciplinary  frontier  technology  volo-avolo  dirty-hands  ai  automation  robotics  duplication  iteration-recursion  von-neumann  data  scale  magnitude  skunkworks  the-world-is-just-atoms  hard-tech  ems  bio  bits  speedometer  nature  model-organism  mechanics  phys-energy  relativity  electromag  analysis  spock  nitty-gritty  spreading  hanson  street-fighting  speed  gedanken  nibble 
march 2018 by nhaliday
The Space Trilogy - Wikipedia
Out of the Silent Planet:

Weston makes a long speech justifying his proposed invasion of Malacandra on "progressive" and evolutionary grounds, which Ransom attempts to translate into Malacandrian, thus laying bare the brutality and crudity of Weston's ambitions.

Oyarsa listens carefully to Weston's speech and acknowledges that the scientist is acting out of a sense of duty to his species, and not mere greed. This renders him more mercifully disposed towards the scientist, who accepts that he may die while giving Man the means to continue. However, on closer examination Oyarsa points out that Weston's loyalty is not to Man's mind – or he would equally value the intelligent alien minds already inhabiting Malacandra, instead of seeking to displace them in favour of humanity; nor to Man's body – since, as Weston is well aware of and at ease with, Man's physical form will alter over time, and indeed would have to in order to adapt to Weston's programme of space exploration and colonisation. It seems then that Weston is loyal only to "the seed" – Man's genome – which he seeks to propagate. When Oyarsa questions why this is an intelligible motivation for action, Weston's eloquence fails him and he can only articulate that if Oyarsa does not understand Man's basic loyalty to Man then he, Weston, cannot possibly instruct him.



The rafts or floating islands are indeed Paradise, not only in the sense that they provide a pleasant and care-free life (until the arrival of Weston) but also in the sense that Ransom is for weeks and months naked in the presence of a beautiful naked woman without once lusting after her or being tempted to seduce her. This is because of the perfection in that world.

The plot thickens when Professor Weston arrives in a spaceship and lands in a part of the ocean quite close to the Fixed Land. He at first announces to Ransom that he is a reformed man, but appears to still be in search of power. Instead of the strictly materialist attitude he displayed when first meeting Ransom, he asserts he had become aware of the existence of spiritual beings and pledges allegiance to what he calls the "Life-Force." Ransom, however, disagrees with Weston's position that the spiritual is inherently good, and indeed Weston soon shows signs of demonic possession.

In this state, the possessed Weston finds the Queen and tries to tempt her into defying Maleldil's orders by spending a night on the Fixed Land. Ransom, perceiving this, believes that he must act as a counter-tempter. Well versed in the Bible and Christian theology, Ransom realises that if the pristine Queen, who has never heard of Evil, succumbs to the tempter's arguments, the Fall of Man will be re-enacted on Perelandra. He struggles through day after day of lengthy arguments illustrating various approaches to temptation, but the demonic Weston shows super-human brilliance in debate (though when "off-duty" he displays moronic, asinine behaviour and small-minded viciousness) and moreover appears never to need sleep.

With the demonic Weston on the verge of winning, the desperate Ransom hears in the night what he gradually realises is a Divine voice, commanding him to physically attack the Tempter. Ransom is reluctant, and debates with the divine (inner) voice for the entire duration of the night. A curious twist is introduced here; whereas the name "Ransom" is said to be derived from the title "Ranolf's Son", it can also refer to a reward given in exchange for a treasured life. Recalling this, and recalling that his God would (and has) sacrificed Himself in a similar situation, Ransom decides to confront the Tempter outright.

Ransom attacks his opponent bare-handed, using only physical force. Weston's body is unable to withstand this despite the Tempter's superior abilities of rhetoric, and so the Tempter flees. Ultimately Ransom chases him over the ocean, Weston fleeing and Ransom chasing on the backs of giant and friendly fish. During a fleeting truce, the "real" Weston appears to momentarily re-inhabit his body, and recount his experience of Hell, wherein the damned soul is not consigned to pain or fire, as supposed by popular eschatology, but is absorbed into the Devil, losing all independent existence.
fiction  scifi-fantasy  tip-of-tongue  literature  big-peeps  religion  christianity  theos  space  xenobio  analogy  myth  eden  deep-materialism  new-religion  sanctity-degradation  civil-liberty  exit-voice  speaking  truth  realness  embodied  fighting  old-anglo  group-selection  war  paying-rent  counter-revolution  morality  parable  competition  the-basilisk  gnosis-logos  individualism-collectivism  language  physics  science  evolution  conquest-empire  self-interest  hmm  intricacy  analytical-holistic  tradeoffs  paradox  heterodox  narrative  philosophy  expansionism  genetics  duty  us-them  interests  nietzschean  parallax  the-devil  the-self 
january 2018 by nhaliday
Fermi paradox - Wikipedia
Rare Earth hypothesis: https://en.wikipedia.org/wiki/Rare_Earth_hypothesis
Fine-tuned Universe: https://en.wikipedia.org/wiki/Fine-tuned_Universe
something to keep in mind:
Puddle theory is a term coined by Douglas Adams to satirize arguments that the universe is made for man.[54][55] As stated in Adams' book The Salmon of Doubt:[56]
Imagine a puddle waking up one morning and thinking, “This is an interesting world I find myself in, an interesting hole I find myself in, fits me rather neatly, doesn't it? In fact, it fits me staggeringly well, must have been made to have me in it!” This is such a powerful idea that as the sun rises in the sky and the air heats up and as, gradually, the puddle gets smaller and smaller, it's still frantically hanging on to the notion that everything's going to be all right, because this World was meant to have him in it, was built to have him in it; so the moment he disappears catches him rather by surprise. I think this may be something we need to be on the watch out for.
article  concept  paradox  wiki  reference  fermi  anthropic  space  xenobio  roots  speculation  ideas  risk  threat-modeling  civilization  nihil  🔬  deep-materialism  new-religion  futurism  frontier  technology  communication  simulation  intelligence  eden  war  nuclear  deterrence  identity  questions  multi  explanans  physics  theos  philosophy  religion  chemistry  bio  hmm  idk  degrees-of-freedom  lol  troll  existence 
january 2018 by nhaliday
[1709.01149] Biotechnology and the lifetime of technical civilizations
The number of people able to end Earth's technical civilization has heretofore been small. Emerging dual-use technologies, such as biotechnology, may give similar power to thousands or millions of individuals. To quantitatively investigate the ramifications of such a marked shift on the survival of both terrestrial and extraterrestrial technical civilizations, this paper presents a two-parameter model for civilizational lifespans, i.e. the quantity L in Drake's equation for the number of communicating extraterrestrial civilizations. One parameter characterizes the population lethality of a civilization's biotechnology and the other characterizes the civilization's psychosociology. L is demonstrated to be less than the inverse of the product of these two parameters. Using empiric data from Pubmed to inform the biotechnology parameter, the model predicts human civilization's median survival time as decades to centuries, even with optimistic psychosociological parameter values, thereby positioning biotechnology as a proximate threat to human civilization. For an ensemble of civilizations having some median calculated survival time, the model predicts that, after 80 times that duration, only one in 1024 civilizations will survive -- a tempo and degree of winnowing compatible with Hanson's "Great Filter." Thus, assuming that civilizations universally develop advanced biotechnology, before they become vigorous interstellar colonizers, the model provides a resolution to the Fermi paradox.
preprint  article  gedanken  threat-modeling  risk  biotech  anthropic  fermi  ratty  hanson  models  xenobio  space  civilization  frontier  hmm  speedometer  society  psychology  social-psych  anthropology  cultural-dynamics  disease  parasites-microbiome  maxim-gun  prepping  science-anxiety  technology  magnitude  scale  data  prediction  speculation  ideas  🌞  org:mat  study  offense-defense  arms  unintended-consequences  spreading  explanans  sociality  cybernetics 
october 2017 by nhaliday
Europa, Enceladus, Moon Miranda | West Hunter
A lot of ice moons seem to have interior oceans, warmed by tidal flexing and possibly radioactivity.  But they’re lousy candidates for life, because you need free energy; and there’s very little in the interior oceans of such system.

It is possible that NASA is institutionally poor at pointing this out.
west-hunter  scitariat  discussion  ideas  rant  speculation  prediction  government  dirty-hands  space  xenobio  oceans  fluid  thermo  phys-energy  temperature  no-go  volo-avolo  physics  equilibrium  street-fighting  nibble  error  track-record  usa  bio  eden  cybernetics  complex-systems 
september 2017 by nhaliday
Controversial New Theory Suggests Life Wasn't a Fluke of Biology—It Was Physics | WIRED
First Support for a Physics Theory of Life: https://www.quantamagazine.org/first-support-for-a-physics-theory-of-life-20170726/
Take chemistry, add energy, get life. The first tests of Jeremy England’s provocative origin-of-life hypothesis are in, and they appear to show how order can arise from nothing.
news  org:mag  profile  popsci  bio  xenobio  deep-materialism  roots  eden  physics  interdisciplinary  applications  ideas  thermo  complex-systems  cybernetics  entropy-like  order-disorder  arrows  phys-energy  emergent  empirical  org:sci  org:inst  nibble  chemistry  fixed-point  wild-ideas 
august 2017 by nhaliday
World Without Stars | West Hunter
Seems to me that forming in a galaxy might give a solar system enough heavy elements, while being flung into the intergalactic deeps would protect you from cosmic catastrophes like gamma-ray bursts.   Such stars might be good homes for complex life, especially a few billion years ago.

Interstellar travel is hard enough for us, but for these guys, it would be a bitch. That first step is a doozy.
west-hunter  scitariat  speculation  ideas  commentary  study  summary  news  org:nat  org:sci  space  xenobio  death  anthropic  fermi 
june 2017 by nhaliday
[1705.03394] That is not dead which can eternal lie: the aestivation hypothesis for resolving Fermi's paradox
If a civilization wants to maximize computation it appears rational to aestivate until the far future in order to exploit the low temperature environment: this can produce a 10^30 multiplier of achievable computation. We hence suggest the "aestivation hypothesis": the reason we are not observing manifestations of alien civilizations is that they are currently (mostly) inactive, patiently waiting for future cosmic eras. This paper analyzes the assumptions going into the hypothesis and how physical law and observational evidence constrain the motivations of aliens compatible with the hypothesis.


simpler explanation (just different math for Drake equation):
Dissolving the Fermi Paradox: http://www.jodrellbank.manchester.ac.uk/media/eps/jodrell-bank-centre-for-astrophysics/news-and-events/2017/uksrn-slides/Anders-Sandberg---Dissolving-Fermi-Paradox-UKSRN.pdf
Overall the argument is that point estimates should not be shoved into a Drake equation and then multiplied by each, as that requires excess certainty and masks much of the ambiguity of our knowledge about the distributions. Instead, a Bayesian approach should be used, after which the fate of humanity looks much better. Here is one part of the presentation:

Life Versus Dark Energy: How An Advanced Civilization Could Resist the Accelerating Expansion of the Universe: https://arxiv.org/abs/1806.05203
The presence of dark energy in our universe is causing space to expand at an accelerating rate. As a result, over the next approximately 100 billion years, all stars residing beyond the Local Group will fall beyond the cosmic horizon and become not only unobservable, but entirely inaccessible, thus limiting how much energy could one day be extracted from them. Here, we consider the likely response of a highly advanced civilization to this situation. In particular, we argue that in order to maximize its access to useable energy, a sufficiently advanced civilization would chose to expand rapidly outward, build Dyson Spheres or similar structures around encountered stars, and use the energy that is harnessed to accelerate those stars away from the approaching horizon and toward the center of the civilization. We find that such efforts will be most effective for stars with masses in the range of M∼(0.2−1)M⊙, and could lead to the harvesting of stars within a region extending out to several tens of Mpc in radius, potentially increasing the total amount of energy that is available to a future civilization by a factor of several thousand. We also discuss the observable signatures of a civilization elsewhere in the universe that is currently in this state of stellar harvesting.
preprint  study  essay  article  bostrom  ratty  anthropic  philosophy  space  xenobio  computation  physics  interdisciplinary  ideas  hmm  cocktail  temperature  thermo  information-theory  bits  🔬  threat-modeling  time  scale  insight  multi  commentary  liner-notes  pdf  slides  error  probability  ML-MAP-E  composition-decomposition  econotariat  marginal-rev  fermi  risk  org:mat  questions  paradox  intricacy  multiplicative  calculation  street-fighting  methodology  distribution  expectancy  moments  bayesian  priors-posteriors  nibble  measurement  existence  technology  geoengineering  magnitude  spatial  density  spreading  civilization  energy-resources  phys-energy  measure  direction  speculation  structure 
may 2017 by nhaliday
Interview Greg Cochran by Future Strategist

- IQ enhancement (somewhat apprehensive, wonder why?)
- ~20 years to CRISPR enhancement (very ballpark)
- cloning as an alternative strategy
- environmental effects on IQ, what matters (iodine, getting hit in the head), what doesn't (schools, etc.), and toss-ups (childhood/embryonic near-starvation, disease besides direct CNS-affecting ones [!])
- malnutrition did cause more schizophrenia in Netherlands (WW2) and China (Great Leap Forward) though
- story about New Mexico schools and his children (mostly grad students in physics now)
- clever sillies, weird geniuses, and clueless elites
- life-extension and accidents, half-life ~ a few hundred years for a typical American
- Pinker on Harvard faculty adoptions (always Chinese girls)
- parabiosis, organ harvesting
- Chicago economics talk
- Catholic Church, cousin marriage, and the rise of the West
- Gregory Clark and Farewell to Alms
- retinoblastoma cancer, mutational load, and how to deal w/ it ("something will turn up")
- Tularemia and Stalingrad (ex-Soviet scientist literally mentioned his father doing it)
- germ warfare, nuclear weapons, and testing each
- poison gas, Haber, nerve gas, terrorists, Japan, Syria, and Turkey
- nukes at https://en.wikipedia.org/wiki/Incirlik_Air_Base
- IQ of ancient Greeks
- history of China and the Mongols, cloning Genghis Khan
- Alexander the Great vs. Napoleon, Russian army being late for meetup w/ Austrians
- the reason why to go into Iraq: to find and clone Genghis Khan!
- efficacy of torture
- monogamy, polygamy, and infidelity, the Aboriginal system (reverse aging wives)
- education and twin studies
- errors: passing white, female infanticide, interdisciplinary social science/economic imperialism, the slavery and salt story
- Jewish optimism about environmental interventions, Rabbi didn't want people to know, Israelis don't want people to know about group differences between Ashkenazim and other groups in Israel
- NASA spewing crap on extraterrestrial life (eg, thermodynamic gradient too weak for life in oceans of ice moons)
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march 2017 by nhaliday
Orthogonal — Greg Egan
In Yalda’s universe, light has no universal speed and its creation generates energy.

On Yalda’s world, plants make food by emitting their own light into the dark night sky.
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february 2017 by nhaliday
The Great Filter | West Hunter
Let us imagine that we found out that nervous systems had evolved twice (which seems to be the case). And suppose that you spent a lot of time worrying about the Fermi Paradox – and had previously thought that nervous system evolution was the unlikely event that explains the great silence, the bottleneck that explained why we don’t see signs of alien intelligent life. Thus in our past: we’re safe. Now you’re worried: maybe the Great Filter lies in our future, and the End approaches. But not just that: you assume that the political class noticed this too, and will start neglecting the future (cough, cough) because they too believe that isn’t going to be one.
Worrying about the Great Filter might not be crazy, but assuming that politicians are hep to such things and worry about them is. If you think that, you have less common sense than a monotreme. And that’s real common. I’ve had analogous arguments with people: they didn’t have any common sense either.
west-hunter  discussion  troll  risk  government  evolution  neuro  eden  antiquity  bio  fermi  threat-modeling  scitariat  anthropic  nihil  new-religion  xenobio  deep-materialism  ideas 
february 2017 by nhaliday
Books, 2016 | West Hunter
1. The Peloponnesian War
2 The Empire of the Steppes
3. The Columbian Exchange
4. Breaking the Maya Code
5. War Before Civilization
6. The Discourses (Machiavelli)
7. Introduction to Algorithms
8. Rare Earth
9. The Wizard War
10. Night comes to the Cretaceous
11. Microbe Hunters
12. The Youngest Science
13. Plagues and Peoples
14. Project Orion
15. Extraordinary Popular Delusions and the Madness of Crowds
16. Godstalk, P. C. Hodgell
17. Footfall, Larry Niven and Jerry Pournelle
18. On Stranger Tides, Tim Powers
19. His Share of Glory, Cyril Kornbluth
20. Herodotus
21. The Secret History, Procopius

Mukherjee is a moron. Next question?

He’s suggested that gene interactions are real important in IQ [epistatic rather than additive effects] but he is incorrect. If new to the field, it could take as much as an afternoon to find that out.
west-hunter  books  recommendations  list  top-n  history  sapiens  medicine  anthropology  2016  info-foraging  confluence  meta:medicine  scitariat  canon  iron-age  the-classics  mediterranean  age-of-discovery  europe  usa  latin-america  war  martial  machiavelli  xenobio  deep-materialism  intel  mostly-modern  world-war  antiquity  nature  disease  parasites-microbiome  space  info-dynamics  error  scifi-fantasy  fiction  farmers-and-foragers  civilization  the-trenches  🔬  ideas  s:*  multi  poast  people  track-record  biodet  behavioral-gen  genetics  iq  nonlinearity  linearity  quixotic 
december 2016 by nhaliday
Fiction: Missile Gap by Charles Stross — Subterranean Press
- flat-earth scifi
- little tidbit from fictional Carl Sagan: behavior of gravity on very large (near-infinite) disk
in limit, no inverse square law, constant downward force: ∫ G/(a^2+r^2) a/sqrt(a^2+r^2) σ rdr dθ = 2πGσ independent of a
for large but finite radius R, asymptotically inverse square but near-constant for a << R (check via Maclaurin expansion around a and x=1/a)
- interesting depiction of war between eusocial species and humans (humans lose)
fiction  space  len:long  physics  mechanics  magnitude  limits  gravity  🔬  individualism-collectivism  xenobio  scifi-fantasy 
october 2016 by nhaliday

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