nhaliday + reddit   196

Why is Google Translate so bad for Latin? A longish answer. : latin
hmm:
> All it does its correlate sequences of up to five consecutive words in texts that have been manually translated into two or more languages.
That sort of system ought to be perfect for a dead language, though. Dump all the Cicero, Livy, Lucretius, Vergil, and Oxford Latin Course into a database and we're good.

We're not exactly inundated with brand new Latin to translate.
--
> Dump all the Cicero, Livy, Lucretius, Vergil, and Oxford Latin Course into a database and we're good.
What makes you think that the Google folks haven't done so and used that to create the language models they use?
> That sort of system ought to be perfect for a dead language, though.
Perhaps. But it will be bad at translating novel English sentences to Latin.
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18 days ago by nhaliday
I can throw a baseball a lot further than a ping pong ball. I cannot throw a bowling ball nearly as far as a baseball. Is there an "optimal" weight for a ball to throw it as far as possible? : answers
If there are two balls with the same size, they will have the same drag force when traveling at the same speed.
Smaller balls will have less wetted area, and therefore less drag force acting on them
A ball with more mass will decelerate less given the same amount of drag.
The human hand has difficulty holding objects that are too large or too small.
I think that a human's throw is limited by the speed of the hand at the moment of release -- the object can't move faster than your hand when it's released.
A ball with more mass will also be more difficult for a human to throw. Thier arm will rotate slower and the object will have less velocity.
As such, you want the smallest ball that a human can comfortably hold, that is heavy for its size but still light with respect to a human's perspective. Bonus points for drag reduction tech.
Golf balls are surprisingly heavy given their size, and the dimples are designed to convert a laminar boundary layer into a turbulent one. Turbulent boundary layers grip the surface better, delaying flow separation, which is likely the most significant contribution to parasitic drag.
TL; DR: probably a golf ball.
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september 2017 by nhaliday
Flows With Friction
To see how the no-slip condition arises, and how the no-slip condition and the fluid viscosity lead to frictional stresses, we can examine the conditions at a solid surface on a molecular scale. When a fluid is stationary, its molecules are in a constant state of motion with a random velocity v. For a gas, v is equal to the speed of sound. When a fluid is in motion, there is superimposed on this random velocity a mean velocity V, sometimes called the bulk velocity, which is the velocity at which fluid from one place to another. At the interface between the fluid and the surface, there exists an attraction between the molecules or atoms that make up the fluid and those that make up the solid. This attractive force is strong enough to reduce the bulk velocity of the fluid to zero. So the bulk velocity of the fluid must change from whatever its value is far away from the wall to a value of zero at the wall (figure 7). This is called the no-slip condition.

http://www.engineeringarchives.com/les_fm_noslip.html
The fluid property responsible for the no-slip condition and the development of the boundary layer is viscosity.
https://www.quora.com/What-is-the-physics-behind-no-slip-condition-in-fluid-mechanics
https://www.reddit.com/r/AskEngineers/comments/348b1q/the_noslip_condition/
https://www.researchgate.net/post/Can_someone_explain_what_exactly_no_slip_condition_or_slip_condition_means_in_terms_of_momentum_transfer_of_the_molecules
https://en.wikipedia.org/wiki/Boundary_layer_thickness
http://www.fkm.utm.my/~ummi/SME1313/Chapter%201.pdf
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september 2017 by nhaliday
Why were Europeans so slow to adopt fore-and-aft rigging? : AskHistorians
Square rig has a number of advantages over fore and aft rig, and the advantages increase as the size of the ship increases.
In general, the fore and aft rig has only one advantage. It can point higher into the wind. This is considerably more apparent on modern yachts with very taught, stainless steel rigging, than it was in earlier times when rigging was hemp rope, and could not be set up so tightly.
If you sail a gaff rigged schooner, especially one still rigged with hemp rigging and canvas sails, I don't think you will be exceedingly impressed with the windward ability.
Even so, square sails are quite effective to windward. The lack of ability to point up high was more often a function of how hard the yards could be braced around (before coming up against the standing rigging) rather than any particular inefficiency in the shape of the sail (although it is probably also possible to get a tighter luff from a taught headstay than from the unstayed luff between two yards, especially if the rigging is steel wire and the hull is stiff enough to set it up tight).
On all points of sailing except to windward, the square rig was more efficient and stable than a fore and aft rig (fore and aft rigged yachts use spinnakers, jennakers and drifters to add power when off the wind, and these are very unstable, difficult, and dangerous sails).
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august 2017 by nhaliday
In a medieval European society, what percentage of people were farmers/peasants, how many were clergy, and how many were nobles? - Quora
Peasants- around 85–90%
Clergy 1%
Nobility (including knights) around 5–10%

As a side note nobilty could be as low as 1%. only frontier nations such as Castile ( Spain) and Poland would be in the 10% range.

This graph of Imperial Russia, (which was still a feudal autocracy in 1897 and had an almost identical class structure to a medieval kingdom) is very useful, just remove the working class and make them peasants!

lots of data on 1086 England (from Domesday Book): https://faculty.history.wisc.edu/sommerville/123/123%2013%20Society.htm
D&D advice mixed w/ historical grounding: http://www222.pair.com/sjohn/blueroom/demog.htm
http://www.lordsandladies.org/
https://www.reddit.com/r/history/comments/4jnc14/what_percentage_of_medieval_societies_were_nobles/
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august 2017 by nhaliday
trees are harlequins, words are harlequins — bayes: a kinda-sorta masterpost
lol, gwern: https://www.reddit.com/r/slatestarcodex/comments/6ghsxf/biweekly_rational_feed/diqr0rq/
> What sort of person thinks “oh yeah, my beliefs about these coefficients correspond to a Gaussian with variance 2.5″? And what if I do cross-validation, like I always do, and find that variance 200 works better for the problem? Was the other person wrong? But how could they have known?
> ...Even ignoring the mode vs. mean issue, I have never met anyone who could tell whether their beliefs were normally distributed vs. Laplace distributed. Have you?
I must have spent too much time in Bayesland because both those strike me as very easy and I often think them! My beliefs usually are Laplace distributed when it comes to things like genetics (it makes me very sad to see GWASes with flat priors), and my Gaussian coefficients are actually a variance of 0.70 (assuming standardized variables w.l.o.g.) as is consistent with field-wide meta-analyses indicating that d>1 is pretty rare.
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august 2017 by nhaliday
the mass defunding of higher education that’s yet to come – the ANOVA
Meanwhile, in my very large network of professional academics, almost no one recognizes any threat at all. Many, I can say with great confidence, would reply to the poll above with glee. They would tell you that they don’t want the support of Republicans. There’s little attempt to grapple with the simple, pragmatic realities of political power and how it threatens vulnerable institutions whose funding is in doubt. That’s because there is no professional or social incentive in the academy to think strategically or to understand that there is a world beyond campus. Instead, all of the incentives point towards constantly affirming one’s position in the moral aristocracy that the academy has imagined itself as. The less one spends on concerns about how the university and its subsidiary departments function in our broader society, the greater one’s performed fealty to the presumed righteousness of the communal values. I cannot imagine a professional culture less equipped to deal with a crisis than that of academics in the humanities and social sciences and the current threats of today. The Iron Law of Institutions defines the modern university, and what moves someone up the professional ranks within a given field is precisely the type of studied indifference to any concerns that originate outside of the campus walls.

http://www.nationalreview.com/article/449418/right-wing-populism-next-target-american-higher-education
https://www.the-american-interest.com/2017/07/10/wages-campus-revolts/
http://www.arnoldkling.com/blog/polarized-attitudes-about-college/

https://twitter.com/jttiehen/status/911475904731275265
https://archive.is/zN0Dh
TBH, if people like Ben Shapiro need $600k security details, universities are on borrowed time. There will be a push to defund
https://twitter.com/jttiehen/status/911618263909404672
https://archive.is/lDXly
https://twitter.com/jttiehen/status/911625626251026432
https://archive.is/GNUDM
https://twitter.com/RoundSqrCupola/status/911631431348183040
https://archive.is/KYyGy

https://www.reddit.com/r/slatestarcodex/comments/74up3r/culture_war_roundup_for_the_week_following/do4mntc/
https://archive.is/LrvLo
It's interesting that this bill was passed at Wisconsin.
I'm not sure how familiar you guys are with what's been going on there, but the University system in Wisconsin has been the site of some serious, really playing-for-keeps, both-sides-engaged-and-firing-on-all-cylinders culture war the last 8 years. Anyone interested in Freddie de Boer's claims about the significant threat Universities face from plummeting support from conservatives should probably be familiar with Wisconsin, as it's been a real beachhead.

Republicans Stuff Education Bill With Conservative Social Agenda: https://www.nytimes.com/2018/02/01/us/first-amendment-education-bill.html
Religious colleges would be able to bar openly same-sex relationships without fear of repercussions.
Religious student groups could block people who do not share their faith from becoming members.
Controversial speakers would have more leverage when they want to appear at colleges.

https://www.nytimes.com/2017/01/09/opinion/whos-really-placing-limits-on-free-speech.html

https://twitter.com/ortoiseortoise/status/879785012270436352
https://archive.is/6CYck
lost in "left v. right free speech" debate is that right="don't agree with BLM"; left: "white men deserve to die" @jttiehen @iamcuriousblue
the left needs free speech protections not just bc it "has less power", contra FDB and others, but because it says far more egregious shit
fact is, it's a "microaggression" to say america's a land of opportunity, scholarly&woke to say white males are fragile idiots, deserve pain

On Tommy Curry: https://necpluribusimpar.net/on-tommy-curry/
A few days ago, Rod Dreher wrote a piece in The American Conservative about a 4 year old interview of Tommy Curry, a professor of philosophy at Texas A&M University. (I would like to add that, although I’m going to criticize Dreher’s article, I think The American Conservative is actually a pretty good publication. In particular, on foreign policy, it’s one of the few publications in the US where sanity has not totally disappeared.) In that article, among other things, Dreher quotes Curry as saying that “in order to be equal, in order to be liberated, some white people might have to die”.

...

With the context, it’s clear that, in the statement quoted by Dreher, Curry wasn’t necessarily expressing his own view, but lamenting what he takes to be the erasure of the fact that, throughout American history, many black leaders have taken seriously the possibility of resorting to violence in order to protect themselves. (I actually think he is right about that, but that’s a pretty common phenomenon. Once a political/cultural figure becomes coopted by the establishment, he is turned into a consensual figure, even though he used to be quite controversial. This happened to Martin Luther King and Gandhi, but also to Charles De Gaulle and Winston Churchill, so despite what Curry seems to think I doubt it has much to do with race.)

...

Although he deserves censure for misrepresenting Curry’s interview, there is one thing Dreher says which strikes me as correct. Indeed, even if you don’t misrepresent what Curry said, it’s clear that any white person saying even half of it would immediately become the object of universal vilification and be cast out of polite society. Indeed, it’s striking how bigoted and, let’s say it, racist and/or sexist language has become on the left, which is apparently okay as long as no minority is targeted.

Texas College Op-Ed Calls For Ethnic Cleansing: http://www.theamericanconservative.com/dreher/texas-college-op-ed-calls-for-ethnic-cleansing/

Opposing Liberal Academia Doesn't Make One 'Anti-Intellectual': http://www.nationalreview.com/corner/444031/opposing-liberal-academia-doesnt-make-one-anti-intellectual
David French on David Gelernter
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july 2017 by nhaliday
China ponders public morality after video of gruesome death - ABC News
Even as China presents itself outwardly as a prosperous rising power, around kitchen tables and in private WeChat groups, Chinese citizens routinely grumble about a nation that's gone bankrupt when it comes to two qualities: "suzhi," or "personal character," and "dixian," literally "bottom line" — or a basic, inviolable sense of right and wrong.

https://www.reddit.com/r/news/comments/6gjoht/china_ponders_public_morality_after_video_of/
The only term that can really be used for China is No good deed goes unpunished. From someone who's of Chinese ethnic but not a Chinese national who has lived in the mainlands for the last 10 years.

The stories about extortionists are real, and they happen all over China. I'm genuinely terrified to help say an elderly who slipped on the pavement, or got nicked by a passing moped because I have no idea whether the victim will point at me and claim I caused the incident and demand payment from me. Police are useless and more often than not will ask the wrongly accused to make a small payment to the "victim" and be on their way, a little money to save time arguing with the extortionist. This has happened so much people are now taking videos of them helping anyone, in case their good deed goes sour.

A news story from about 2 weeks back, a man knew a friend was a bit unhappy/feeling down and invited said friend to his home to talk about this, to cheer her up. When he had his back towards the friend while getting some fruits, she jumped out the balcony and died. The family sued the man for 300k, and the court upheld their lawsuit but toned it down to 80k, saying the man is 20% responsible for her death, claiming he knows the friend was unhappy and should have kept a closer eye on her. Trying to help a friend, and that's what you get for not being to help, imagine why people don't want to help anymore.

http://www.bbc.com/news/business-40351409
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july 2017 by nhaliday
Dimensions - Geert Hofstede
http://geerthofstede.com/culture-geert-hofstede-gert-jan-hofstede/6d-model-of-national-culture/

https://www.reddit.com/r/europe/comments/4g88kt/eu28_countries_ranked_by_hofstedes_cultural/
https://archive.is/rXnII

https://hbdchick.wordpress.com/2013/09/07/national-individualism-collectivism-scores/

Individualism and Collectivism in Israeli Society: Comparing Religious and Secular High-School Students: https://sci-hub.tw/https://link.springer.com/article/10.1023/A:1016945121604
A common collective basis of mutual value consensus was found in the two groups; however, as predicted, there were differences between secular and religious students on the three kinds of items, since the religious scored higher than the secular students on items emphasizing collectivist orientation. The differences, however, do not fit the common theoretical framework of collectivism-individualism, but rather tend to reflect the distinction between in-group and universal collectivism.

Individualism and Collectivism in Two Conflicted Societies: Comparing Israeli-Jewish and Palestinian-Arab High School Students: https://sci-hub.tw/http://journals.sagepub.com/doi/10.1177/0044118X01033001001
Both groups were found to be more collectivistic than individualistic oriented. However, as predicted, the Palestinians scored higher than the Israeli students on items emphasizing in-group collectivist orientation (my nationality, my country, etc.). The differences between the two groups tended to reflect some subdistinctions such as different elements of individualism and collectivism. Moreover, they reflected the historical context and contemporary influences, such as the stage where each society is at in the nation-making process.

Religion as culture: religious individualism and collectivism among american catholics, jews, and protestants.: https://www.ncbi.nlm.nih.gov/pubmed/17576356
We propose the theory that religious cultures vary in individualistic and collectivistic aspects of religiousness and spirituality. Study 1 showed that religion for Jews is about community and biological descent but about personal beliefs for Protestants. Intrinsic and extrinsic religiosity were intercorrelated and endorsed differently by Jews, Catholics, and Protestants in a pattern that supports the theory that intrinsic religiosity relates to personal religion, whereas extrinsic religiosity stresses community and ritual (Studies 2 and 3). Important life experiences were likely to be social for Jews but focused on God for Protestants, with Catholics in between (Study 4). We conclude with three perspectives in understanding the complex relationships between religion and culture.

Inglehart–Welzel cultural map of the world: https://en.wikipedia.org/wiki/Inglehart%E2%80%93Welzel_cultural_map_of_the_world
Live cultural map over time 1981 to 2015: https://www.youtube.com/watch?v=ABWYOcru7js

https://en.wikipedia.org/wiki/Post-materialism
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june 2017 by nhaliday
Original pronunciation of "Ceasar"? : AskHistorians
So was Cicero (Sissero) pronounced Kikkero? Does the hard "k" only apply to the first letter making it Kissero?

KEE-ker-o would be the Latin pronunciation as far as we can tell, yes.

..wow, so that would make 'veni vidi vici' sound like "weeney, weedie, wiki"?

more like "wenny, widdy, wiki"

Wait, does this mean that the "Biggus Dickus" scene from Monty Python's Life of Brian was (in addition to being a funny scene) poking fun at what people might actually have sounded like when they were speaking proper Latin?

https://www.youtube.com/watch?v=zPGb4STRfKw
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june 2017 by nhaliday
If there are 3 space dimensions and one time dimension, is it theoretically possible to have multiple time demensions and if so how would it work? : askscience
Yes, we can consider spacetimes with any number of temporal or spatial dimensions. The theory is set up essentially the same. Spacetime is modeled as a smooth n-dimensional manifold with a pseudo-Riemannian metric, and the metric satisfies the Einstein field equations (Einstein tensor = stress tensor).
A pseudo-Riemannian tensor is characterized by its signature, i.e., the number of negative quadratic forms in its metric and the number of positive quadratic forms. The coordinates with negative forms correspond to temporal dimensions. (This is a convention that is fixed from the start.) In general relativity, spacetime is 4-dimensional, and the signature is (1,3), so there is 1 temporal dimension and 3 spatial dimensions.
Okay, so that's a lot of math, but it all basically means that, yes, it makes sense to ask questions like "what does a universe with 2 time dimensions and 3 spatial dimensions look like?" It turns out that spacetimes with more than 1 temporal dimension are very pathological. For one, initial value problems do not generally have unique solutions. There is also generally no canonical way to pick out 1 of the infinitely many solutions to the equations of physics. This means that predictability is impossible (e.g., how do you know which solution is the correct one?). Essentially, there is no meaningful physics in a spacetime with more than 1 temporal dimension.
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june 2017 by nhaliday
How important was colonial trade for the rise of Europe? | Economic Growth in History
The latter view became the orthodoxy among economists and economic historians after Patrick O’Brien’s 1982 paper, which in one of many of Patrick’s celebrated phrases, claims that “”the periphery vs peripheral” for Europe. He concludes the paper by writing:

“[G]rowth, stagnation, and decay everywhere in Western Europe can be explained mainly by reference to endogenous forces. … for the economic growth of the core, the periphery was peripheral.”

This is the view that remarkable scholars such as N. Crafts, Deirdre McCloskey, or Joel Mokyr repeat today (though Crafts would argue cotton imports would have mattered in a late stage, and my reading of Mokyr is that he has softened his earlier view from the 1980s a little, specifically in the book The Enlightened Economy.) Even recently, Brad deLong has classifyied O’Brien’s 1982 position as “air tight”.

Among economists and economic historians more on the economics side, I would say that O’Brien’s paper was only one of two strong hits against the “Worlds-System” and related schools of thoughts of the 1970s, the other hit being Solow’s earlier conclusion that TFP growth (usually interpreted as technology, though there’s more to it than that) has accounted for economic growth a great deal more than capital accumulation, which is what Hobsbawm and Wallerstein, in their neo-Marxist framework, emphasize.

https://twitter.com/tcjfs/status/890034395456974848
A friend tonight, on the third world and the first world, and our relationships to the past: "They don't forget, and we don't remember."
https://twitter.com/edwest/status/872337163458932736
imo the European Intifada is being fueled by anti-Europeanism & widely taught ideas like this one discussed - Europe stole its riches

https://www.thinkpragati.com/opinion/1863/dont-blame-empire/
The British Empire was cruel, rapacious and racist. But contrary to what Shashi Tharoor writes in An Era Of Darkness, the fault for India’s miseries lies upon itself.

Indeed, the anti-Tharoor argument is arguably closer to the truth, because the British tended to use the landlord system in places where landlords were already in place, and at times when the British were relatively weak and couldn’t afford to upset tradition. Only after they became confident in their power did the British start to bypass the landlord class and tax the cultivators directly. King’s College London historian Jon Wilson (2016) writes in India Conquered, “Wherever it was implemented, raiyatwar began as a form of military rule.” Thus the system that Tharoor implicitly promotes, and which is associated with higher agricultural productivity today, arose from the very same colonialism that he blames for so many of India’s current woes. History does not always tell the parables that we wish to hear.

...

India’s share of the world economy was large in the eighteenth century for one simple reason: when the entire world was poor, India had a large share of the world’s population. India’s share fell because with the coming of the Industrial Revolution, Europe and North America saw increases of income per capita to levels never before seen in all of human history. This unprecedented growth cannot be explained by Britain’s depredations against India. Britain was not importing steam engines from India.

The big story of the Great Divergence is not that India got poorer, but that other countries got much richer. Even at the peak of Mughal wealth in 1600, the best estimates of economic historians suggest that GDP per capita was 61% higher in Great Britain. By 1750–before the battle of Plassey and the British takeover–GDP per capita in Great Britain was more than twice what it was in India (Broadberry, Custodis, and Gupta 2015). The Great Divergence has long roots.

Tharoor seems blinded by the glittering jewels of the Maharajas and the Mughals. He writes with evident satisfaction that when in 1615 the first British ambassador presented himself to the court of Emperor Jehangir in Agra, “the Englishman was a supplicant at the feet of the world’s mightiest and most opulent monarch.” True; but the Emperor’s opulence was produced on the backs of millions of poor subjects. Writing at the same time and place, the Dutch merchant Francisco Pelsaert (1626) contrasted the “great superfluity and absolute power” of the rich with “the utter subjection and poverty of the common people–poverty so great and miserable that the life of the people can be depicted…only as the home of stark want and the dwelling-place of bitter woe.” Indian rulers were rich because the empire was large and inequality was extreme.

In pre-colonial India the rulers, both Mughal and Maratha, extracted _anywhere from one-third to one half of all gross agricultural output_ and most of what was extracted was spent on opulence and the armed forces, not on improving agricultural productivity (Raychaudhuri 1982).

...

The British were awful rulers but the history of India is a long story of awful rulers (just as it is for most countries). Indeed, by Maddison’s (2007) calculations _the British extracted less from the Indian economy than did the Mughal Dynasty_. The Mughals built their palaces in India while the British built most of their palaces in Britain, but that was little comfort to the Indian peasant who paid for both. The Kohinoor diamond that graces the cover of Inglorious Empire is a telling symbol. Yes, it was stolen by the British (who stole it from the Sikhs who stole it from the Afghanis who stole it from the Mughals who stole it from one of the kings of South India). But how many Indians would have been better off if this bauble had stayed in India? Perhaps one reason why more Indians didn’t take up arms against the British was that for most of them, British rule was a case of meet the new boss, same as the old boss.

more for effect on colonies: https://pinboard.in/u:nhaliday/b:4b0128372fe9

INDIA AND THE GREAT DIVERGENCE: AN ANGLO-INDIAN COMPARISON OF GDP PER CAPITA, 1600-1871: http://eh.net/eha/wp-content/uploads/2013/11/Guptaetal.pdf
This paper provides estimates of Indian GDP constructed from the output side for the pre-1871 period, and combines them with population estimates to track changes in living standards. Indian per capita GDP declined steadily during the seventeenth and eighteenth centuries before stabilising during the nineteenth century. As British living standards increased from the mid-seventeenth century, India fell increasingly behind. Whereas in 1600, Indian per capita GDP was over 60 per cent of the British level, by 1871 it had fallen to less than 15 per cent. As well as placing the origins of the Great Divergence firmly in the early modern period, the estimates suggest a relatively prosperous India at the height of the Mughal Empire, with living standards well above bare bones subsistence.

https://twitter.com/pseudoerasmus/status/832288984009207810
but some of the Asian wage data (especialy India) have laughably small samples (see Broadberry & Gupta)

How profitable was colonialism for various European powers?: https://www.reddit.com/r/AskHistorians/comments/p1q1q/how_profitable_was_colonialism_for_various/

How did Britain benefit from colonising India? What did colonial powers gain except for a sense of power?: https://www.quora.com/How-did-Britain-benefit-from-colonising-India-What-did-colonial-powers-gain-except-for-a-sense-of-power
The EIC period was mostly profitable, though it had recurring problems with its finances. The initial voyages from Surat in 1600s were hugely successful and brought profits as high as 200%. However, the competition from the Dutch East India Company started to drive down prices, at least for spices. Investing in EIC wasn’t always a sure shot way to gains - British investors who contributed to the second East India joint stock of 1.6 million pounds between 1617 and 1632 ended up losing money.

...

An alternate view is that the revenues of EIC were very small compared to the GDP of Britain, and hardly made an impact to the overall economy. For instance, the EIC Revenue in 1800 was 7.8m pounds while the British GDP in the same period was 343m pounds, and hence EIC revenue was only 2% of the overall GDP. (I got these figures from an individual blog and haven’t verified them).

...

The British Crown period - The territory of British India Provinces had expanded greatly and therefore the tax revenues had grown in proportion. The efficient taxation system paid its own administrative expenses as well as the cost of the large British Indian Army. British salaries were lucrative - the Viceroy received £25,000 a year, and Governors £10,000 for instance besides the lavish amenities in the form of subsidized housing, utilities, rest houses, etc.

...

Indian eminent intellectual, Dadabhai Naoroji wrote how the British systematically ensured the draining of Indian economy of its wealth and his theory is famously known as ‘Drain of Wealth’ theory. In his book 'Poverty' he estimated a 200–300 million pounds loss of revenue to Britain that is not returned.

At the same time, a fair bit of money did go back into India itself to support further colonial infrastructure. Note the explosion of infrastructure (Railway lines, 100+ Cantonment towns, 60+ Hill stations, Courthouses, Universities, Colleges, Irrigation Canals, Imperial capital of New Delhi) from 1857 onward till 1930s. Of course, these infrastructure projects were not due to any altruistic motive of the British. They were intended to make their India empire more secure, comfortable, efficient, and to display their grandeur. Huge sums of money were spent in the 3 Delhi Durbars conducted in this period.

So how profitable was the British Crown period? Probably not much. Instead bureaucracy, prestige, grandeur, comfort reigned supreme for the 70,000 odd British people in India.

...

There was a realization in Britain that colonies were not particularly economically beneficial to the home economy. … [more]
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june 2017 by nhaliday
Genomic analysis of family data reveals additional genetic effects on intelligence and personality | bioRxiv
methodology:
Using Extended Genealogy to Estimate Components of Heritability for 23 Quantitative and Dichotomous Traits: http://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1003520
Pedigree- and SNP-Associated Genetics and Recent Environment are the Major Contributors to Anthropometric and Cardiometabolic Trait Variation: http://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1005804

Missing Heritability – found?: https://westhunt.wordpress.com/2017/02/09/missing-heritability-found/
There is an interesting new paper out on genetics and IQ. The claim is that they have found the missing heritability – in rare variants, generally different in each family.

Some of the variants, the ones we find with GWAS, are fairly common and fitness-neutral: the variant that slightly increases IQ confers the same fitness (or very close to the same) as the one that slightly decreases IQ – presumably because of other effects it has. If this weren’t the case, it would be impossible for both of the variants to remain common.

The rare variants that affect IQ will generally decrease IQ – and since pleiotropy is the norm, usually they’ll be deleterious in other ways as well. Genetic load.

Happy families are all alike; every unhappy family is unhappy in its own way.: https://westhunt.wordpress.com/2017/06/06/happy-families-are-all-alike-every-unhappy-family-is-unhappy-in-its-own-way/
It now looks as if the majority of the genetic variance in IQ is the product of mutational load, and the same may be true for many psychological traits. To the extent this is the case, a lot of human psychological variation must be non-adaptive. Maybe some personality variation fulfills an evolutionary function, but a lot does not. Being a dumb asshole may be a bug, rather than a feature. More generally, this kind of analysis could show us whether particular low-fitness syndromes, like autism, were ever strategies – I suspect not.

It’s bad new news for medicine and psychiatry, though. It would suggest that what we call a given type of mental illness, like schizophrenia, is really a grab-bag of many different syndromes. The ultimate causes are extremely varied: at best, there may be shared intermediate causal factors. Not good news for drug development: individualized medicine is a threat, not a promise.

see also comment at: https://pinboard.in/u:nhaliday/b:a6ab4034b0d0

https://www.reddit.com/r/slatestarcodex/comments/5sldfa/genomic_analysis_of_family_data_reveals/
So the big implication here is that it's better than I had dared hope - like Yang/Visscher/Hsu have argued, the old GCTA estimate of ~0.3 is indeed a rather loose lower bound on additive genetic variants, and the rest of the missing heritability is just the relatively uncommon additive variants (ie <1% frequency), and so, like Yang demonstrated with height, using much more comprehensive imputation of SNP scores or using whole-genomes will be able to explain almost all of the genetic contribution. In other words, with better imputation panels, we can go back and squeeze out better polygenic scores from old GWASes, new GWASes will be able to reach and break the 0.3 upper bound, and eventually we can feasibly predict 0.5-0.8. Between the expanding sample sizes from biobanks, the still-falling price of whole genomes, the gradual development of better regression methods (informative priors, biological annotation information, networks, genetic correlations), and better imputation, the future of GWAS polygenic scores is bright. Which obviously will be extremely helpful for embryo selection/genome synthesis.

The argument that this supports mutation-selection balance is weaker but plausible. I hope that it's true, because if that's why there is so much genetic variation in intelligence, then that strongly encourages genetic engineering - there is no good reason or Chesterton fence for intelligence variants being non-fixed, it's just that evolution is too slow to purge the constantly-accumulating bad variants. And we can do better.
https://rubenarslan.github.io/generation_scotland_pedigree_gcta/

The surprising implications of familial association in disease risk: https://arxiv.org/abs/1707.00014
https://spottedtoad.wordpress.com/2017/06/09/personalized-medicine-wont-work-but-race-based-medicine-probably-will/
As Greg Cochran has pointed out, this probably isn’t going to work. There are a few genes like BRCA1 (which makes you more likely to get breast and ovarian cancer) that we can detect and might affect treatment, but an awful lot of disease turns out to be just the result of random chance and deleterious mutation. This means that you can’t easily tailor disease treatment to people’s genes, because everybody is fucked up in their own special way. If Johnny is schizophrenic because of 100 random errors in the genes that code for his neurons, and Jack is schizophrenic because of 100 other random errors, there’s very little way to test a drug to work for either of them- they’re the only one in the world, most likely, with that specific pattern of errors. This is, presumably why the incidence of schizophrenia and autism rises in populations when dads get older- more random errors in sperm formation mean more random errors in the baby’s genes, and more things that go wrong down the line.

The looming crisis in human genetics: http://www.economist.com/node/14742737
Some awkward news ahead
- Geoffrey Miller

Human geneticists have reached a private crisis of conscience, and it will become public knowledge in 2010. The crisis has depressing health implications and alarming political ones. In a nutshell: the new genetics will reveal much less than hoped about how to cure disease, and much more than feared about human evolution and inequality, including genetic differences between classes, ethnicities and races.

2009!
study  preprint  bio  biodet  behavioral-gen  GWAS  missing-heritability  QTL  🌞  scaling-up  replication  iq  education  spearhead  sib-study  multi  west-hunter  scitariat  genetic-load  mutation  medicine  meta:medicine  stylized-facts  ratty  unaffiliated  commentary  rhetoric  wonkish  genetics  genomics  race  pop-structure  poast  population-genetics  psychiatry  aphorism  homo-hetero  generalization  scale  state-of-art  ssc  reddit  social  summary  gwern  methodology  personality  britain  anglo  enhancement  roots  s:*  2017  data  visualization  database  let-me-see  bioinformatics  news  org:rec  org:anglo  org:biz  track-record  prediction  identity-politics  pop-diff  recent-selection  westminster  inequality  egalitarianism-hierarchy  high-dimension  applications  dimensionality  ideas  no-go  volo-avolo  magnitude  variance-components  GCTA  tradeoffs  counter-revolution  org:mat  dysgenics  paternal-age  distribution  chart  abortion-contraception-embryo 
june 2017 by nhaliday
[1705.08807] When Will AI Exceed Human Performance? Evidence from AI Experts
Researchers predict AI will outperform humans in many activities in the next ten years, such as translating languages (by 2024), writing high-school essays (by 2026), driving a truck (by 2027), working in retail (by 2031), writing a bestselling book (by 2049), and working as a surgeon (by 2053). Researchers believe there is a 50% chance of AI outperforming humans in all tasks in 45 years and of automating all human jobs in 120 years, with Asian respondents expecting these dates much sooner than North Americans.

https://www.reddit.com/r/slatestarcodex/comments/6dy6ex/arxiv_when_will_ai_exceed_human_performance/
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may 2017 by nhaliday
Pearson correlation coefficient - Wikipedia
https://en.wikipedia.org/wiki/Coefficient_of_determination
what does this mean?: https://twitter.com/GarettJones/status/863546692724858880
deleted but it was about the Pearson correlation distance: 1-r
I guess it's a metric

https://en.wikipedia.org/wiki/Explained_variation

http://infoproc.blogspot.com/2014/02/correlation-and-variance.html
A less misleading way to think about the correlation R is as follows: given X,Y from a standardized bivariate distribution with correlation R, an increase in X leads to an expected increase in Y: dY = R dX. In other words, students with +1 SD SAT score have, on average, roughly +0.4 SD college GPAs. Similarly, students with +1 SD college GPAs have on average +0.4 SAT.

this reminds me of the breeder's equation (but it uses r instead of h^2, so it can't actually be the same)

https://www.reddit.com/r/slatestarcodex/comments/631haf/on_the_commentariat_here_and_why_i_dont_think_i/dfx4e2s/
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may 2017 by nhaliday
Are the Rich More Selfish than the Poor, or Do They Just Have More Money? A Natural Field Experiment
We present new evidence from a natural field experiment in which we “misdeliver” envelopes to rich and poor households in a Dutch city, varying their contents to identify motives for returning them. Our raw data indicate the rich behave more pro-socially. Controlling for pressures associated with poverty and the marginal utility of money, however, we find no difference in social preferences. The primary distinction between rich and poor is simply that the rich have more money.

also, apparently the Netherlands has highest wealth inequality in Europe (anglo-dutch heritage?)

https://www.reddit.com/r/slatestarcodex/comments/6j8703/culture_war_roundup_for_the_week_following_june/djcpbys/
https://www.reddit.com/r/slatestarcodex/comments/6xkyyu/culture_war_roundup_for_the_week_following/dmio3ax/

https://www.1843magazine.com/features/does-power-really-

Socio-Economic Status and Inequalities in Children’s IQ and Economic Preferences: http://www.dice.hhu.de/fileadmin/redaktion/Fakultaeten/Wirtschaftswissenschaftliche_Fakultaet/DICE/Discussion_Paper/274_Deckers_Falk_Kosse_Pinger_Schildberg_Hoerisch.pdf
We document that children from high SES families are more intelligent, patient and altruistic, as well as less likely to be risk-seeking.
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march 2017 by nhaliday
Gummo - Wikipedia
Gummo is a 1997 American dystopian art film written and directed by Harmony Korine, starring Jacob Reynolds, Nick Sutton, Jacob Sewell, and Chloë Sevigny. The film is set in Xenia, Ohio, a small, poor Midwestern American town that had been previously struck by a devastating tornado. The loose narrative follows several main characters who find odd and destructive ways to pass time, interrupted by vignettes depicting other inhabitants of the town.

https://www.reddit.com/r/TrueFilm/comments/5ub6g5/gummo_a_raw_unfiltered_look_at_how_ugly_life_can/
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march 2017 by nhaliday
I've heard in the Middle Ages peasants weren't allowed to travel and that it was very difficult to travel in general. But what about pilgrimages then? Who participated in them and how did they overcome the difficulties of travel? : AskHistorians
How far from home did the average medieval person travel in a lifetime?: https://www.reddit.com/r/AskHistorians/comments/1a1egs/how_far_from_home_did_the_average_medieval_person/
What was it like to travel during the middle ages?: https://www.reddit.com/r/AskHistorians/comments/32n9ji/what_was_it_like_to_travel_during_the_middle_ages/
How expensive were medieval era inns relative to the cost of travel?: https://www.reddit.com/r/AskHistorians/comments/2j3a1m/how_expensive_were_medieval_era_inns_relative_to/
Logistics of Travel in Medieval Times: https://www.reddit.com/r/AskHistorians/comments/3fc8li/logistics_of_travel_in_medieval_times/
Were people of antiquity and the Middle Ages able to travel relatively freely?: https://www.reddit.com/r/AskHistorians/comments/wy3ir/were_people_of_antiquity_and_the_middle_ages_able/
How did someone such as Ibn Battuta (practically and logistically) travel, and keep travelling?: https://www.reddit.com/r/AskHistorians/comments/1nw9mg/how_did_someone_such_as_ibn_battuta_practically/
'm a Norseman around the year 950 C.E. Could I have been born in Iceland, raided the shores of the Caspian Sea, and walked amongst the markets of Baghdad in my lifetime? How common was extreme long distance travel?: https://www.reddit.com/r/AskHistorians/comments/2gh52r/im_a_norseman_around_the_year_950_ce_could_i_have/
Lone (inter-continental) long-distance travelers in the Middle Ages?: https://www.reddit.com/r/AskHistorians/comments/1mrraq/lone_intercontinental_longdistance_travelers_in/
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february 2017 by nhaliday
How easy was it for a fugitive to hide and/or establish a new identity before the invention of photography? : AskHistorians
There were strategies used to prevent this, such as branding. It was a major part of the law code in Anglo-Saxon England and it continued to be used intermittently in to the mid 19th c.
q-n-a  reddit  social  discussion  history  travel  crime  frontier  britain  europe  criminal-justice  early-modern  photography  trivia  lived-experience  prepping 
february 2017 by nhaliday
Pre-industrial travel would take weeks to get anywhere. What did people do during that time? : AskHistorians
How did travellers travel the world in the 16th century? Was there visas?: https://www.reddit.com/r/AskHistorians/comments/5659ig/how_did_travellers_travel_the_world_in_the_16th/
How far from home would a typical Europeanin the 1600s travel in their life?: https://www.reddit.com/r/AskHistorians/comments/5gsgn7/how_far_from_home_would_a_typical_europeanin_the/
I just read an article about how I can travel across country for $213 on Amtrak. How much would the trip have cost me in, say, the mid-1800s: https://www.reddit.com/r/AskHistorians/comments/3poen3/i_just_read_an_article_about_how_i_can_travel/
Ridiculously subjective but I'm curious anyways: What traveling distance was considered beyond the hopes and even imagination of a common person during your specialty?: https://www.reddit.com/r/AskHistorians/comments/13zlsg/ridiculously_subjective_but_im_curious_anyways/
How fast could you travel across the U.S. in the 1800s?: https://www.mnn.com/green-tech/transportation/stories/how-fast-could-you-travel-across-the-us-in-the-1800s
What would be the earliest known example(s) of travel that could be thought of as "tourism"?: https://www.reddit.com/r/AskHistorians/comments/2uqxk9/what_would_be_the_earliest_known_examples_of/
https://twitter.com/conradhackett/status/944382041566654464
https://archive.is/9GWdK
This map shows travel time from London in 1881
q-n-a  reddit  social  discussion  history  europe  russia  early-modern  travel  lived-experience  multi  money  transportation  prepping  world  antiquity  iron-age  medieval  MENA  islam  comparison  mediterranean  usa  trivia  magnitude  scale  pre-ww2  navigation  measure  data  visualization  maps  feudal  twitter  pic  backup  journos-pundits 
february 2017 by nhaliday
Considerations On Cost Disease | Slate Star Codex
ratty  yvain  ssc  economics  education  higher-ed  healthcare  efficiency  money  analysis  inequality  faq  trends  winner-take-all  multi  reddit  social  hn  commentary  data  visualization  rent-seeking  econotariat  2017  p:null  wonkish  malaise  cost-disease  news  org:mag  org:bv  noahpinion  org:biz  chart  zeitgeist  the-bones  housing  org:ngo  org:anglo  automation  labor  marginal-rev  scott-sumner  market-failure  gnon  counter-revolution  cracker-econ  techtariat  gray-econ  randy-ayndy  poast  list  links  supply-demand  government  policy  regulation  econ-productivity  planning  long-term  parenting 
february 2017 by nhaliday
The Comforts of the Betsy DeVos War - The New York Times
But somehow it was DeVos who became, in the parlance of cable-news crawls, Trump’s “most controversial nominee.” Never mind that Trump’s logorrheic nationalism barely has time for education. Never mind that local control of schools makes the Education Department a pretty weak player. Never mind that Republican views on education policy are much closer to the expert consensus than they are on, say, climate change. Never mind that the bulk of DeVos’s school-choice work places her only somewhat to the right of the Obama administration’s pro-charter-school positioning, close to centrist Democrats like Senator Cory Booker. None of that mattered: Against her and (so far) only her, Democrats went to the barricades, and even dragged a couple of wavering Republicans along with them.

critique: https://www.reddit.com/r/slatestarcodex/comments/5seo0p/culture_war_roundup_for_week_of_february_6_2017/ddig1fi/
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february 2017 by nhaliday
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