The Dravidianization of India

On this week’s The Insight Spencer Wells and I talk about the Indo-Aryan arrival to South Asia. This was recorded very early last summer, and I’m rather unguarded (it’s well before I had the piece published in India Today).

I think 2018 will finally be the year that a lot of South Asia will be “solved.” There has been some foot-dragging on papers and results, but that can only go so long.

All that being said I suppose I should make some suppositions I have arrived at on this topic more explicit, as in a discussion with an Indian friend he admitted had no idea about some of my views, though he reads this weblog when I expressed them. That’s because they are speculative and my confidence in them is weak, though you can infer my opinions if you look very closely.

The figure to the left is from Genomic insights into the origin of farming in the ancient Near East, a paper published about a year and a half ago. You see various South Asian populations being modeled as a mixture of four different source populations. The Onge are an Andaman Islander population (and the closest we can get to the aboriginal peoples of South Asia). Iran_N represents Neolithic Iranians, the canonical “eastern farmer” population. Steppe_EMBA represent Yamnaya pastoralists, who are themselves modeled as a mixture of Eastern European Hunter-Gatherers (EHG) and southern population which has affinities with the Iran_N cluster. EHG in their turn seems to exhibit ancestry from Western European Hunter-Gatherers (WHG), whose heritage dates to the late Pleistocene, and Ancient North Eurasians (ANE), who flourished in Siberia, and contributed ancestry to populations to the west and east (including the ancestors of Native Americans).

When I first saw this specific figure I was incredulous. I had long thought that “Ancient North Indians” (ANI) were a compound of two elements, one related to the farmers of West Asia (Iran_N), and the other steppe Indo-European (Steppe_EMBA/Yamnaya). But the fraction of Yamnaya/Indo-European/Indo-Aryan ancestry seemed far too high.

A few years later I am less certain about my skepticism. The fractions here in the details are debatable. Within the text of the paper, the author admits that the true ancestral populations are probably not represented by the model. But they are close. In most cases, the “Han” ancestry is probably indicative of the fact that the non-ANI component of South Asian ancestry is most closely related to the Onge, but is significantly different nonetheless.

The ratio of Iran_N and Steppe_EMBA is the key. Here is a selection from the paper:

Group Iran_N Steppe_EMBA Ratio
Jew_Cochin 0.53 0.23 2.27
Brahui 0.60 0.30 1.98
Kharia 0.13 0.07 1.97
Balochi 0.57 0.32 1.75
Mala 0.23 0.18 1.25
Vishwabrahmin 0.25 0.20 1.21
GujaratiD 0.29 0.28 1.04
Sindhi 0.38 0.38 1.00
Bengali 0.22 0.25 0.91
Pathan 0.36 0.45 0.81
Punjabi 0.24 0.33 0.72
GujaratiB 0.27 0.38 0.72
Lodhi 0.21 0.29 0.72
Burusho 0.27 0.43 0.64
GujaratiC 0.23 0.37 0.61
Kalash 0.29 0.50 0.58
GujaratiA 0.26 0.46 0.57
Brahmin_Tiwari 0.23 0.44 0.51

Any way you slice it, a group like the Tiwari Brahmins of Northern India have more Onge-like ancestry than most of the groups in Pakistan. But also observe that the ratio toward Steppe_EMBA is more skewed in them than among even Pathans or Kalash.  The Lodhi, a non-upper caste population from Uttar Pradesh in north-central South Asia are more skewed toward Steppe_EMBA than Pathans.

It is important for me to reiterate that the key is to focus on ratios and not exact percentages. Though the Steppe_EMBA fraction did strike me as high, glimmers of these sorts of results were evident in model-based clustering approaches as early as 2010. The population in the list above most skewed toward Iran_N are Cochin Jews. This group has known Middle Eastern ancestry. But next on the list are Brahui, a Dravidian speaking group in Pakistan. There is a north-south cline within Pakistan, with northern populations (Burusho) being skewed toward Steppe_EMBA and southern ones (Sindhi) being skewed toward Iran_N. Additionally, Iranian groups such as Pathans and Baloch likely have had some continuous gene flow with Middle Eastern groups, probably inflating their Iran_N.

Trends I see in the data:

  1. There is a north-south cline within Pakistan with Steppe_EMBA vs. Iran_N
  2. There is a north-south cline within South Asia with Steppe_EMBA vs. Iran_N
  3. There is caste stratification within regions between Steppe_EMBA vs. Iran_N
  4. Though not clear in this table, there are strong suggestions that Indo-European speaking groups tend to be enriched in Steppe_EMBA, all things equal (e.g., the Bengalis in the 1000 Genomes look a lot like the middle-caste Telugus in the 1000 Genomes when you remove the East Asian ancestry…except for a noticeable small fraction of a component which I think points to Indo-European ancestry)

What does this mean in terms of a model of the settlement of South Asian over the past 4,000 years? One conclusion I have come to is that Dravidian speaking groups are not the aboriginal peoples of the subcontinent. Rather, their settlement across much of South Asia is very recent. Almost as recent as Indo-Aryan habitation. In First Farmers the archaeologist Peter Bellwood proposed this model, whereby Indo-Aryans and Dravidians both expanded across South Asia concurrently. Though I think elements of Bellwood’s model that are incorrect, it’s far more correct in my opinion than I believed when I first encountered it.

Why do I believe this?

  1. The Neolithic begins in South India in 3000 BC.
  2. Sri Lanka is Indo-European speaking
  3. The Dravidian languages of South India don’t seem particularly diverged from each other
  4. There is ancestry/caste stratification in South India even excluding Brahmins (e.g., Reddys and Naidus in Andhra Pradesh look somewhat different from Dalits and tribals)
  5. Some scholars claim that there isn’t a Dravidian substrate in the Gangetic plain
  6. R1a1a-Z93, almost certainly associated with Indo-Aryans, is found in South Indian tribal populations
  7. Using LD-based methods researchers are rather sure that the last admixture events between ANI and ASI (“Ancestral South Indians”) populations occurred around ~4,000 years ago

Here is my revised model as succinctly as I can outline it. The northwest fringes of South Asia, today Pakistan, and later to be the home of the Indus Valley Civilization (IVC), was populated by a mix of indigenous populations, a form of ASI, when West Asian agriculturalists arrived ~9,000 years ago from what is today Iran. These were the Iran_N or “eastern farmer” groups. The West Asian agricultural toolkit was serviceable in northwestern South Asia for reasons of climate and ecology, but could not expand further east and south for thousands of years.

There is where the first admixture occurred that led to a population was mixed between ANI and ASI. These people lacked Steppe_EMBA. They were pre-Indo-European. They were almost certainly not all Dravidian speaking. The Burusho people of northern Pakistan, for example, speak a language isolate (in India proper you have Nihali and Kusunda)

By ~3000 BC this proto-South Asian (in a modern sense) population began to expand, while the IVC matured and waxed. Eventually, the IVC waned, fragmented, and disappeared.

Around ~2000 BC, or perhaps somewhat later, Indo-Aryans arrive in South Asia. The situation at this stage in not one of a primordial and static Dravidian India, on which Indo-Aryans place themselves on top. Rather, it’s a dynamic one as the collapse of the IVC has opened up a disordered power vacuum, and a reconfiguration of cultural and sociopolitical alliances.

In the paper above the author alludes to the pervasiveness of both Iran_N and Steppe_EMBA ancestry in South Asia, including in South India. “Indo-European” Y chromosomal lineages are also found among many South Indian groups, albeit at attenuated proportions region-wide. In Peter Turchin’s formulation, I believe that “Indo-Aryan” and “Dravidian” identities became meta-ethnic coalitions in the post-IVC world. Genetically the two groups are different, on average. But some Dravidian populations assimilated and integrated Indo-Aryan tribes and bands, while Indo-Aryans as newcomers assimilated many Dravidian populations.

The reason that the ratio of Iran_N to Steppe_EMBA does not decline monotonically as one goes from west to east along North Indian plain is that Indo-Aryans were not expanding into a Dravidian India.  Dravidian India was expanding only somewhat ahead of Indo-Aryan India, and in some places not all at all. In the northwest fringe of South Asia there had long been a settled population of peasants with West Asian ancestry with Iran_N affinities. In contrast to the east the landscape was populated by nomadic tribal populations with ASI affinities. North Indian Brahmins may have more Steppe_EMBA than some populations in Pakistan and more ASI because they descend from Indo-Aryan groups who absorbed indigenous ASI populations as they expanded across the landscape.

Dravidian groups as they expanded also assimilated indigenous populations. This explains some groups with very high fractions of ASI. Their ASI ancestry is a compound, of an old admixture in Northwest India, and also later assimilation in South India. The presence of R1a1a-Z93 in these populations reflects the integration of some originally Indo-Aryan groups into the expanding Dravidian wavefront.

Where does this leave us?

  1. The Indo-Aryan vs. Dravidian dichotomy is not one of newcomers vs. aboriginals. It is of two different sociocultural configurations which came into their current shape in the waning days of the IVC. That is, it is less than 4,000 years old
  2. The two populations were clearly interacting closely around the time of the collapse and disintegration of the IVC and post-IVC societies. There has been gene flow between the two
  3. ~4000 years ago ANI and ASI populations existed in their “pure” form, but that is because ASI aboriginals still existed to the south and east of the IVC, while Indo-Aryans were a new intrusive presence in the Indian subcontinent

Runs of homozygosity are not good for your functioning

A must read review in Nature Reviews Genetics, Runs of homozygosity: windows into population history and trait architecture. Because it’s a paper on runs of homozygosity, James F. Wilson is on the apper.

If you are the product of a first cousin marriage, you have lots of runs of homozygosity. That’s because some of you will have large sections of the genome where both of the homologous chromosomes come from the same individual and are identical. In populations with small populations, this occurs not through recent inbreeding, as much as the reduced genetic diversity cranking up the frequency of some haplotypes over and above others.

The review covers all the bases, from distributions of runs of homozygosity in modern populations to ancient ones, as well as their functional consequences.

To the left, the plot shows that some populations, such as the Makrani of Pakistan, have fewer numbers of runs of homozygosity, but long ones when they have them. The populations on this part of the diagram are part of the “inbreeding belt.” In contrast, there are other populations with lots of runs of homozygosity, but they’re shorter. These are usually part of the “bottleneck belt,” where bottlenecks and small long-term effective populations have produced greater levels of homozygosity even on the genotype scale.

Perhaps the most interesting point though is that runs of homozygosity strongly correlate with changes in the values of a complex trait. In general, inbreeding is not too good, because recessively expressing deleterious alleles get exposed, and runs of homozygosity are a proxy for that.* This is why more exogamy in the Middle East and India may be such a social good.

* There may be confounds here. More educated and smarter people may marry those more distant from them geographically due to mobility.

Open Thread, 1/14/2018

Steven Pinker is one of my favorite public intellectuals. The Language Instinct is probably my favorite book from Pinker.

Last week I started seeing scientists who I respect(ed) starting to tweet that Steven Pinker, a moderately liberal academic of Jewish background, is a fan of Neo-Nazis. This stuff started to litter my timeline since I follow many scientists on Twitter. To find all the links and commentary, start with Jerry Coyne, who is a friend of Steve’s. All I have to say is that a substantial portion of the science Twittersphere is OK with bracketing Steven Pinker with Neo-Nazis. True fact.

I read Consciousness and the Brain: Deciphering How the Brain Codes Our Thoughts two years ago. I don’t remember much about that book though.

CBC under fire for documentary that says first humans to colonize New World sailed from Europe. There is less evidence for the Solutrean Hypothesis now than there was 20 years ago (in a relative sense). We also now know from ancient DNA that almost no Solutrean ancestry is present in modern Europeans.

If you don’t believe me, read this paper, The genetic history of Ice Age Europe.

At least most of my Twitter followers don’t seem to be anti-Pinker.

Having a hard time saying anything about Anhui of note. Perhaps that says something?

Genomweb story that mentions both my day-job and side-hustle.

Turning cheesecake into a weapon of war

Steven Pinker and many other evolutionary psychologists believe that music is cognitive cheesecake. That is, we have a lot of cognitive faculties working in concert, and musical appreciation and ability emerge out of the synthesis. But there wasn’t direct selection for music, as such. Musical appreciation then may not be adaptive.

And yet like reading and writing music clearly co-opts part of the human brain in terms of functional localization. There are people with brain injuries who can not speak well who nevertheless can sing well, and can communicate through song.

But perhaps most important, just because a trait did not emerge due to natural selection, does not entail that it might not be subject to later selection. One can make arguments that musical ability was adaptive at some point in human existence on the individual scale. But I have something else in mind: music is functionally important in war. Military marching bands did not arise coincidentally, music as an accompaniment to the march and a way to communicate and rouse the troops to action have been part and parcel of winning and executing battle. Music triggered social change in the 1960s.

I think much the same is probably true of religion.  My own position is that the shamanic/primal form of religious belief bubbles up out of our cognitive architecture as a side effect of other processes. But this byproduct can be co-opted by cultural evolutionary selection, and reshaped into something with functional utility.

The genetics of the St. Thomas Christians

First, I have to say I appreciate everyone who keeps sending data to the South Asian Genotype Project. Basically, I’m automating the pipeline, finding ways to merge data from a host of sources, but also figuring out how to refine the analysis.

But until then, today I decided to do some more manual analysis of three St. Thomas Christian samples I have (also called Nasranis). The reason is that there were some questions on Twitter in relation to the genetics of this group, and though three is not a great sample size, it’s better than nothing.

The St. Thomas Christians are a diverse group of people of various denominations in the southern state of Kerala who have diverse origin stories. Today the St. Thomas Christians have a range of denominational and sectarian affinities, but their origins probably have something to the Church of the East.

These Christians claim roots among the local Brahmin community, Jews, and West Asian settlers. To be honest, whenever people tell me about the Brahmin ancestors unless they were recent converts I discount this because there are about ten times as many St. Thomas Christians in Kerala as there are Brahmins. There is a small Jewish community in the area, and this region of India was long part of the Indian Ocean trade network of the Arabs.

I merged the three Nasrani samples with a lot of other populations. Zooming in on the South Asians, if you look at the PCA plot to the left (click it), you’ll see that they are not in the same cluster as the South Indian Brahmins (Brahmins from the four South Indian states are very similar to each). But, in comparison to non-Brahmin South Indians, they do seem Brahmin shifted.

As I have observed before these South Indian Brahmins can be thought of as more than 50% North Indian Brahmin, but the remainder being South Indian non-Brahmin. Aside from exotic exceptions (Parsis, Bengalis), most South Asians exist on an ANI-ASI “cline,” with lower caste South Indians being at one end of the cline (more ASI), and populations in the far northwest, such as the Kalash, being at the other end (more ANI). The PCA would suggest that the Nasrani are more ANI-shifted than a generic South Indian group, but less so than South Indian Brahmins.

Using Treemix to detect gene flow events, what I found is that the Nasranis look like a generic South Indian group. There’s no evidence of gene flow from Middle Eastern populations (Jews, Persians).

I did some f-3 tests and there isn’t anything conclusive I see to suggest Middle Eastern gene flow into the Nasranis.

Finally, I ran ADMIXTURE in supervised mode. Here are the average results for a set of South Asian populations (mean values):

Group Druze Georgian Han Iranian Telugu Yemenite Jew
Bangladeshi 1% 2% 12% 1% 83% 1%
Chamar 0% 0% 3% 0% 97% 0%
Gujurati_Patel 0% 1% 0% 10% 89% 0%
UP Kshatriya 0% 3% 1% 21% 76% 0%
Nasrani 0% 4% 1% 12% 83% 0%
Pathan 0% 4% 1% 55% 40% 0%
Piramalai_Kallar 0% 0% 2% 0% 97% 0%
SI_Brahmin 0% 4% 1% 16% 78% 0%
Telugu_Reddy 0% 3% 0% 0% 94% 3%
UP_Brahmin 0% 4% 1% 26% 69% 0%
UP_Kayastha 0% 0% 1% 20% 79% 0%
Velama 1% 1% 0% 2% 96% 0%
West_Bengal_Kayastha 0% 0% 7% 8% 85% 0%

In these results, the Nasrani do look shifted in the same direction as South Indian Brahmins, though less so. Observe that there is no clear Middle Eastern signal in the Nasrani above and beyond what you see in South Asians. This, despite the fact that Indian Jews show a very strong signal of admixture from the Middle East. At this point, I am confident in rejecting Nasrani St. Thomas Christian origins in a converted Jewish community, or one with a large degree of West Asian admixture.

Though the genetic profile of these three individuals does not support clear descent from South Indian Brahmins, I can not reject the model of Brahmin admixture into this community. On the contrary, a plausible model would see to be that various South Indian groups, including Brahmins, contributed to the Nasrani community over the centuries.

To be continued….

From the content to the creator

The science fiction writer S. M. Stirling has a problem with his series centered around the Domination alternative history because readers often confuse the narrative of the alternative history for the author’s endorsement of its arc and philosophy. You see, the novels and stories depict a world where a quasi-Nazi ghoulishly Nietzschean race termed the Draka eventually rise to conquer the whole world. Similarly, the fantasy writer Brandon Sanderson has had problems with readers who are curious why he has sympathetic atheist characters, despite he himself being a devout Mormon.

Obviously, some writers focus on what they know and have experienced. Jhumpa Lahiri comes to mind. She has said that she has no plans to delve beyond the purview of her West Bengali story arcs. But other writers like to explore viewpoints which are startlingly novel and at variance with those of themselves. This is probably particularly true of speculative fiction. Part of being human is the ability to do this with varying levels of fluency.

It is important in any case not to confuse the writer with what they are writing about.

Some of the same applies to what I talk about on this blog. This is clear and obvious when I’m considering the selection coefficient of a novel allele. But what about the Iranian regime?

  1. I am not personally a fan of the regime.
  2. I also believe it is important to describe it accurately and in its own terms.

Some of the latter is for instrumental reasons: if you are to defeat the enemy you must understand it. Even in the early 9/11 years, this was clear, but many people resisted this attempt, as emotions were quite raw. Islamist radicals were viewed in almost metaphysical terms, as forces of nature, evil essences of the universe. The reality though is that they are embodied creatures with needs, wants, and delusions, just like any other.

Ultimately I’m generally pretty frank with my views on a topic if I have them and want to express them. I’m not being cryptic. In some cases, I don’t want to interject my own personal views (which most can infer or know in any case). In other cases, I don’t have a strong opinion.

What religion is

It’s been about 10 years since I addressed this topic. Largely because I have no new thoughts. But probably after 10 years, it’s useful to revisit/clarify on this topic to clarify confusions, since people have a lot of opinions on this topic.

People mean different things when they mean “religion,” and the different meanings are not contradictory, nor in conflict.

At the lowest level in terms of individual cognition religion emerges from deep intuitions about the nature of the universe. Colloquially one might say that religion bubbles out of our unconscious.

In relation to social units, say the clan or tribe, religion consists of these intuitions about the nature of the universe and the world around us, bound together with rituals and verbal descriptions and narratives. These rituals and communal narratives help forge some sort of group Weltanschauung that has a functional utility in terms of inter-group competition and relations. Here religion steps out of the individual and becomes an expression of collective consensus.

As human societies became more complex the role of religious professionals became more elaborated. The common role of a shaman can be thought of as a magician, one who manipulates and operates in the domain of the supernatural. Shamans are common and ubiquitous in pre-state societies (even if a tribe does not have a “professional” shaman, someone takes on the role when needed). The priest adds on top of this institutional authority, often supra-clan or tribal. No king, no priest. Eventually, though the shaman-priest took on the role of the metaphysician. The metaphysician generates abstract principles and rationales, which can transcend the tribe or ethnicity, and allows religion to generate meta-ethnic civilizational identities in the service of priestly functions.

So in the post-Axial Age, the religious professional is often shaman, priest, and philosopher.

In relation to my post about why I am not a New Atheist, New Atheists, and the hyper-verbal expositors of modern organized religion, often tend to reduce religion to a branch of philosophy with some textual revelatory buttress. By refuting the philosophy of religion, they think that they refute religion in toto.  But what they refute is only the latest and most elaborated structural expression of the religious phenomenon.

What about the priest? Though I am wary of the term “political religion,” due to semantic confusion, it seems clear that the function of the priest can be stripped of its supernatural valence. Many of the most objectionable characteristics of religion for people of liberal orientations derives from the institutionalized priestly functions. Unfortunately, the persistence of the priest in the absence of gods, shamanic powers and metaphysical justification opens the doors to secular totalitarianism.

Finally, it seems almost impossible to stamp out the shaman. Shamanism is like music. You can banish it through institutional sanctions, but once those sanctions disappear, shamanism reappears.

These different aspects of religiosity exist and persist simultaneously in most contexts, but sometimes in tension. Philosophers and priests often take a dim view of shamanic religiosity. In organized religion of the modern sort shamanism is marginalized, or highly constrained and regulated in sacraments. But the recession of state-sponsored Christianity across much of the West has arguably resulted in a resurgence of shamanism, and the proliferation of diverse supernatural beliefs which had previously been suppressed (much of East Asia is characterized by relative weakness of philosophical religion but the strength of shamanism).

Jade Eggs anyone?

The relevance of all this in relation to New Atheism is that New Atheism seems to posit a religious “Blank Slate.” That is, children are indoctrinated in religion at a small age, previous to which they had been atheists. Part of this is due to the fact that the philosophical-metaphysical aspect of religion is quite clearly indoctrination, and often of a superficial sort at that (judging by how weak most believer’s grasp of theology is). But the communal and psychological aspects are not indoctrination, as much as specific instantiations of general human sentiments, dispositions, and intuitions. The erasure of a Christian, Buddhist or Islamic religious orientation will not necessarily leave in its wake a mind primed for scientific naturalism. Rather, it will simply be one shorn of Axial-Age accretions, reverted back to the shamanic age…

As someone who is an atheist, I have never had strong intuitions that lead me to find shamanism plausible. Additionally, the philosophical arguments are wanting for me in relation to God, though they are interesting (thanks to reader Thursday I’m reading Edward Feser’s work). Finally, obviously, I take a dim view of the conformity and structure which the priests attempt to impose upon us.  But I do not presume I am not typical.

Personal genomics question: am I related to my 5th cousins?

There are some personal genomics questions I get over and over via email. I thought I would post an answer so that Google could pick it up.

One of them usually has do with if someone is “really” related to someone who comes up as a 5th cousin on a DTC service. What does “really” mean?

Graham Coop has done the formal work to show that it’s highly likely all our genealogies intersect some point in the recent past. Several years ago in his paper with Peter Ralph, The Geography of Recent Genetic Ancestry across Europe, they used genetic data to infer just how closely European lineages coalesced with each other over the past few thousand years.

So yes, you are related (though that doesn’t mean you have matching genetic segments).

But that’s not the question people are really asking about. They are asking, does this DNA match increase the probability that I’m somehow related to this person?

In general, I think not. For example, I regularly get queries from South Asians about distant matches with Europeans. Does this mean they are European? No. I think what it means is:

1) There are lots of Europeans in the database, so a false positive match is likely to be European, even if you are non-European.

2) At short genetic distances, the segments are really mostly some sort of false positive.

Why I am not a New Atheist

Since this comes up now and then I thought I’d put up a quick and short post why I am not a “New Atheist.”

I am an atheist. But I have two major disagreements with the New Atheist tendency. One of them is descriptive and the other is prescriptive.

For the past fifteen years or so I have been strongly convinced that the cognitive anthropology of religion has a lot to say in explaining why most people have historically been religious. The thesis, outlined in books such as In Gods We Trust and Religion Explained, is that humans have strong innate cognitive dispositions which often synthesize together to produce intuitions that dispose them toward belief in the supernatural.

In contrast, a caricature of the New Atheist position would be that religion was written down in a book, and is a meme copied into human brains. As such, it is a meme which can be undone with enough social and cultural suasion. New Atheists, like the village atheists of yore, seem to think one can argue others out of their religiosity.

Fundamentally I do not think this is correct. Nor do I think that religious beliefs have much to do with logic or reason. Religion is a complex phenomenon which is rooted in supernatural intuitions and then evolves further in a cultural context, with some possible functional utility as a group-marker.

Second, I do not think religion is the “root of all evil”, and so see no need to convert the world to atheism. Obviously, the horror of Communism illustrates that removing supernatural religion does not remove the human impulse to atrocity.

More recently, I have been convinced that truth and knowledge is a minor value to most humans, including elites. Lying is pretty ubiquitous, and most people are rather satisfied with big lies girding social norms and conventions. One may try to avoid “living by lies” in private, but actually promoting this viewpoint in public is ridiculously self-destructive. Most people could care less about the truth,* while elites simply manipulate facts to buttress their social positions and engage in control.

In other words, the New Atheists seem to think that it’s a worthy to aim to enlighten humanity toward views which they believe align with reality.

At this point, I care about converting the common man to a true understanding of reality as much as I care about a cow grokking trigonometry. I don’t.

Note: I am not anti-New Atheist either! I think they play a role in the ecology of ideas. Also, I don’t really care if people get their feelings hurt. I hurt feelings all the time. To paraphrase George Constantza, you get a few New Atheists running around, and I’m not looking so bad.

* This includes journalists and scientists. And by “care,” I mean in revealed preferences. Not what people claim privately.

Zhejiang, on the margins of Jiangnan

Zhejiang is the province to the south of Jiangsu, and the heart of Jiangnan, the lower Yangzi river area. As noted in my previous post this region is notable for its economic productivity and wealth, which dates back more than 1,000 years, and persists down the present. Like Jiangsu, Zhejiang is outside of the core area of the rise of Han civilization, but by the 1st millennium A.D. became a redoubt of Chinese civilization in the face of non-Chinese incursions into the north.

Zhejiang is also the location for one of the major centers of Christianity in China, Wenzhou. On the order of ten percent of this city’s population is Christian.