Intellectual Dark Web: New movement or just a rebranding of old ideas?

Is it a super-secret place for the global el33t? Or is it just a bunch of n00bs masquerading as true h4x0rs?

The Intellectual Dark Web sounds like a shady corner of the internet, a place to buy illicit David Foster Wallace novels or hook-up for a midnight rendezvous to discuss metamodernist urban planning. While the IDW certainly hosts its fair share of late-night bullshit sessions, it’s not as clandestine as its namesake, the dark web, suggests.

The term was coined, half-jokingly, by mathematician Eric Weinstein and gained prominence after Bari Weiss, staff editor, and writer at the New York Times, wrote an op-ed profiling the movement. It refers to a burgeoning group of thinkers looking to create a space where cultural discourse is both civil and fact-based. At least, that’s how its supporters see it. Others have argued the IDW is nothing special, just a new to sell dated and bad ideas.

Which is it: is the intellectual dark web an important new movement or a rebranding for old ideas?

What (or who) is the IDW?

As Weiss’s op-ed points out, the IDW is not a structured organization with group meetings, membership lists, or a policy manifesto. As such, who or what ideas belong remain, whether by design or its nascent status, nebulous. Thinkers identified by Weiss as a part of the IDW include:

  • Evolutionary biologists Bret Weinstein and Heather Heying

  • Clinical psychologist and professor Jordan Peterson

  • Popular science and philosophy writer Sam Harris

  • Conservative commentators Ben Shapiro and Douglas Murray

  • Podcast host and MMA commentator Joe Rogan

  • American Enterprise Institute scholar Christina Hoff Sommers

  • Skeptics Society founder Michael Shermer

  • Talk show host Dave Rubin

  • Human rights activist Ayaan Hirsi Ali

  • Activist Maajid Nawaz

The group seems to have little in common, either politically or philosophically. Nawaz has publicly debated both Hirsi Ali and Murray on whether Islam is a religion of peace.1 Peterson and Harris have engaged in long-winded arguments on the nature of truth.2 Bret Weinstein and Heying, his wife, are professed progressives,3 while Ben Shapiro is considered the conservative cool kid.4

Of course, this list is not comprehensive as no official list of IDW members exist. The closest is this website, which rounds up Weiss’s usual suspects and adds intellectuals and personalities such as comedian Owen Benjamin, Quillette founder Claire Lehmann, and psychology professor Steven Pinker.

But this only leads one to wonder whether membership is by invitation, request, or if the movement merely pulls public figures into its orbit like some trending black hole. Pinker has shared the stage with several IDW members but has never proclaimed himself a card-carrying member. Economist Glenn Loury and linguist John McWhorter aren’t mentioned in the article or on the website, but others have claimed they represent the “black wing” of the IDW.

As for ideals, again, there’s nothing concrete to draw on. The IDW website’s anonymous host claims the movement converges on issues of “individualism vs. collectivism, liberty over authoritarianism, and the importance of freedom of speech.”

Weiss cites three qualities for IDW membership: 1) the willingness to discuss any topic civilly, 2) basing one’s opinions on facts and not what is politically convenient, and 3) being willing to stand up to organizations and individuals who are hostile to open debate.

“Of course, the whole notion of drawing lines to keep people out is exactly what inspired the Intellectual Dark Web folks in the first place,” Weiss writes. “They’re committed to the belief that setting up no-go zones and no-go people is inherently corrupting to free thought.”

Everything old is new again

The importance of free speech is a discussion with a long shelf-life, as are debates centered on truth, civility, liberty, and individualism. Given that such topics are a major focus of the IDW, commentators have argued the movement is a merely bull-polishing to shine up old ideas for clicks and Patreon donations.

“That’s what really gets to me about the so-called ‘Intellectual Dark Web’: I’ve heard nothing unique from any of them,” political commentator David Pakman said. “That is why it is abundantly clear that the entire intellectual dark web movement is not an intellectual movement; it’s a movement around marketing and presentation style, combined with using the internet and social media. Period.”

Under this lens, the IDW’s goal of creating a cultural space safe for speech and ideas is superfluous, as social mechanisms already manage the task, and the movement merely becomes a way for its members to combat status threat by carving out a space where they can express ideas without fear of protest or a loss of reputation.

Others have argued it is a cover for dated ideas, such as race-IQ theorizing, that society has already tested and rejected. If the IDW’s ranks expand far enough to encompass conspiracy theorists Mike Cernovich and Alex Jones, then things quickly escalate from dated to dangerous.

“[IDW members] are not driving the conversation, and sometimes are being driven from it,” Henry Farrell, a professor of political science at George Washington University, writes. “This loss of relative social status helps explain the anger and resentment that Weiss describes and to some extent herself embodies.”

Alternative sense-making collective

Eric Weinstein referred to the IDW as an intellectual movement in Weiss’s article but has since revised the labeling. He now refers to the network as “alternative sense-making collective.”5

If that’s the case, then what does it stand as an alternative to?

IDW affiliate Dave Rubin sees this network as one that opposes the ideologically stagnant gatekeepers of old media. According to Rubin, the IDW are people “who are figuring out ways to have the important and often dangerous conversations that are completely ignored by the mainstream. It’s why I would argue that this collection of people are [sic] actually more influential than whatever collection of cable news pundits you can come up with.”

Sidestepping the fact that many of the IDW’s members have appeared on cable TV (as pundits no less), Rubin’s take aligns closely with Weinstein’s. He notes that an IDW member’s analysis on current events will often run counter to mainstream media’s take, particularly left-leaning outlets.

“The so-called commentariat […] seem to have been somewhat captured by a new network which thinks it terms that are very different to the networks that have previously lived at these organizations,” Weinstein said. “As a result, I believe that the intellectual dark web is going to be perceived as rivals.”

At the Federalist, managing editor Joy Pullmann agrees, comparing the IDW’s rise to that of the talk radio phenomenon from the 1980s, where then “alternative media” personalities separated themselves from the mainstream to present their opinions unfiltered.

Today, the radio waves have simply been replaced by YouTube, podcasts, and social media, platforms that can reach much larger audiences than the AM signals of yesteryear. In fact, as Pullmann points out, Rogan, Peterson, Shapiro, and Rubin have a combined reach that competes with Fox News and legacy media such as the Times and the Washington Post.

As for why the IDW can’t get along with mainstream media, that depends on whom you ask. Supports would point to Rubin’s remarks, noting the mainstream ignores conversations that are politically inconvenient. Meanwhile, as we’ve seen, opponents believe the IDW isn’t ignored by the mainstream; they simply aren’t viewed as an unassailable narrative driving force.

One of the more interesting takes belongs to Jacob Falkovich. Writing for Quillette, Falkovich surveyed the seemingly disparate members of the IDW and found what he believes to be a linking personality trait. Most sport a “decoupling mindset” — that is, their goal is to explore and study an idea or incident from the basis of logic and data, disconnected from its historical context or personal experiences.

This is in stark contrast to mainstream journalists, whom Falkovich sees as having a “contextualizer” mindset and view the world through the historical context of personal narratives. The result? The decouplers and contextualizers talk past one another, leading to the formation of different tribes with an “us versus them” mentality.

So, which is it?

Unfortunately, it is difficult to say. As it stands, the IDW’s boundaries are too wide and its membership too amorphous for any clear verdict.

Under these conditions, commentators can pick and choose the ideas and individuals they need to prove their point. Want to prove the need for an alternative sense-making network? Focus on the maltreatment of Bret Weinstein at Evergreen State College. Want to insist that IDW members proliferate bad, even dangerous ideas? Point out that Ben Shapiro tweeted Arabs like to “live in open sewage.”

At this point, the IDW feels more like a cultural Rorschach test than anything.

In time, these boundaries may solidify as some thinkers renounce the movement and others join it, as some ideas are rejected and others sanctioned. If that happens, we may be able to revisit this question for a clearer answer. If not, then the Intellectual Dark Web will likely be relegated to the cultural closet alongside other trendy, but ultimately fruitless, fads.

We’ll just have to wait and see.


1. Islam is a religion of peace. Intelligence Squared. Retrieved on July 19, from

2. Waking up with Sam Harris #62 – What is true? (with Jordan B. Peterson). The Waking Up Podcast. Retrieved on July 19, from .

3. When the left turns on its own. Bari Weiss. The New York Times. Retrieved on July 19, from

4. Ben Shapiro, a provocative ‘gladiator,’ battles to win young conservatives. Sabrina Tavernise. The New York Times. Retrieved on July 24, from

5. Why the “Intellectual Dark Web” has such a crazy name. Eric Weinstein. YouTube. Retrieved on July 22, from .

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Scientists see 'rarest event ever recorded' in search for dark matter

The team caught a glimpse of a process that takes 18,000,000,000,000,000,000,000 years.

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Yale scientists restore brain function to 32 clinically dead pigs

Researchers hope the technology will further our understanding of the brain, but lawmakers may not be ready for the ethical challenges.

Still from John Stephenson's 1999 rendition of Animal Farm.
Surprising Science
  • Researchers at the Yale School of Medicine successfully restored some functions to pig brains that had been dead for hours.
  • They hope the technology will advance our understanding of the brain, potentially developing new treatments for debilitating diseases and disorders.
  • The research raises many ethical questions and puts to the test our current understanding of death.

The image of an undead brain coming back to live again is the stuff of science fiction. Not just any science fiction, specifically B-grade sci fi. What instantly springs to mind is the black-and-white horrors of films like Fiend Without a Face. Bad acting. Plastic monstrosities. Visible strings. And a spinal cord that, for some reason, is also a tentacle?

But like any good science fiction, it's only a matter of time before some manner of it seeps into our reality. This week's Nature published the findings of researchers who managed to restore function to pigs' brains that were clinically dead. At least, what we once thought of as dead.

What's dead may never die, it seems

The researchers did not hail from House Greyjoy — "What is dead may never die" — but came largely from the Yale School of Medicine. They connected 32 pig brains to a system called BrainEx. BrainEx is an artificial perfusion system — that is, a system that takes over the functions normally regulated by the organ. The pigs had been killed four hours earlier at a U.S. Department of Agriculture slaughterhouse; their brains completely removed from the skulls.

BrainEx pumped an experiment solution into the brain that essentially mimic blood flow. It brought oxygen and nutrients to the tissues, giving brain cells the resources to begin many normal functions. The cells began consuming and metabolizing sugars. The brains' immune systems kicked in. Neuron samples could carry an electrical signal. Some brain cells even responded to drugs.

The researchers have managed to keep some brains alive for up to 36 hours, and currently do not know if BrainEx can have sustained the brains longer. "It is conceivable we are just preventing the inevitable, and the brain won't be able to recover," said Nenad Sestan, Yale neuroscientist and the lead researcher.

As a control, other brains received either a fake solution or no solution at all. None revived brain activity and deteriorated as normal.

The researchers hope the technology can enhance our ability to study the brain and its cellular functions. One of the main avenues of such studies would be brain disorders and diseases. This could point the way to developing new of treatments for the likes of brain injuries, Alzheimer's, Huntington's, and neurodegenerative conditions.

"This is an extraordinary and very promising breakthrough for neuroscience. It immediately offers a much better model for studying the human brain, which is extraordinarily important, given the vast amount of human suffering from diseases of the mind [and] brain," Nita Farahany, the bioethicists at the Duke University School of Law who wrote the study's commentary, told National Geographic.

An ethical gray matter

Before anyone gets an Island of Dr. Moreau vibe, it's worth noting that the brains did not approach neural activity anywhere near consciousness.

The BrainEx solution contained chemicals that prevented neurons from firing. To be extra cautious, the researchers also monitored the brains for any such activity and were prepared to administer an anesthetic should they have seen signs of consciousness.

Even so, the research signals a massive debate to come regarding medical ethics and our definition of death.

Most countries define death, clinically speaking, as the irreversible loss of brain or circulatory function. This definition was already at odds with some folk- and value-centric understandings, but where do we go if it becomes possible to reverse clinical death with artificial perfusion?

"This is wild," Jonathan Moreno, a bioethicist at the University of Pennsylvania, told the New York Times. "If ever there was an issue that merited big public deliberation on the ethics of science and medicine, this is one."

One possible consequence involves organ donations. Some European countries require emergency responders to use a process that preserves organs when they cannot resuscitate a person. They continue to pump blood throughout the body, but use a "thoracic aortic occlusion balloon" to prevent that blood from reaching the brain.

The system is already controversial because it raises concerns about what caused the patient's death. But what happens when brain death becomes readily reversible? Stuart Younger, a bioethicist at Case Western Reserve University, told Nature that if BrainEx were to become widely available, it could shrink the pool of eligible donors.

"There's a potential conflict here between the interests of potential donors — who might not even be donors — and people who are waiting for organs," he said.

It will be a while before such experiments go anywhere near human subjects. A more immediate ethical question relates to how such experiments harm animal subjects.

Ethical review boards evaluate research protocols and can reject any that causes undue pain, suffering, or distress. Since dead animals feel no pain, suffer no trauma, they are typically approved as subjects. But how do such boards make a judgement regarding the suffering of a "cellularly active" brain? The distress of a partially alive brain?

The dilemma is unprecedented.

Setting new boundaries

Another science fiction story that comes to mind when discussing this story is, of course, Frankenstein. As Farahany told National Geographic: "It is definitely has [sic] a good science-fiction element to it, and it is restoring cellular function where we previously thought impossible. But to have Frankenstein, you need some degree of consciousness, some 'there' there. [The researchers] did not recover any form of consciousness in this study, and it is still unclear if we ever could. But we are one step closer to that possibility."

She's right. The researchers undertook their research for the betterment of humanity, and we may one day reap some unimaginable medical benefits from it. The ethical questions, however, remain as unsettling as the stories they remind us of.

Why compassion fades

A scientific look into a ubiquitous phenomenon.

Photo credit: Adrian Swancar on Unsplash
Sex & Relationships

One victim can break our hearts. Remember the image of the young Syrian boy discovered dead on a beach in Turkey in 2015? Donations to relief agencies soared after that image went viral. However, we feel less compassion as the number of victims grows. Are we incapable of feeling compassion for large groups of people who suffer a tragedy, such as an earthquake or the recent Sri Lanka Easter bombings? Of course not, but the truth is we aren't as compassionate as we'd like to believe, because of a paradox of large numbers. Why is this?

Compassion is a product of our sociality as primates. In his book, The Expanding Circle: Ethics, Evolution, and Moral Progress, Peter Singer states, "Human beings are social animals. We were social before we were human." Mr. Singer goes on to say, "We can be sure that we restrained our behavior toward our fellows before we were rational human beings. Social life requires some degree of restraint. A social grouping cannot stay together if its members make frequent and unrestrained attacks on one another."

Attacks on ingroups can come from forces of nature as well. In this light, compassion is a form of expressed empathy to demonstrate camaraderie.

Yet even after hundreds of centuries of evolution, when tragedy strikes beyond our community, our compassion wanes as the number of displaced, injured, and dead mounts.

The drop-off in commiseration has been termed the collapse of compassion. The term has also been defined in The Oxford Handbook of Compassion Science: ". . . people tend to feel and act less compassionately for multiple suffering victims than for a single suffering victim."

That the drop-off happens has been widely documented, but at what point this phenomenon happens remains unclear. One paper, written by Paul Slovic and Daniel Västfjäll, sets out a simple formula, ". . . where the emotion or affective feeling is greatest at N =1 but begins to fade at N = 2 and collapses at some higher value of N that becomes simply 'a statistic.'"

The ambiguity of "some higher value" is curious. That value may relate to Dunbar's Number, a theory developed by British anthropologist, Robin Dunbar. His research centers on communal groups of primates that evolved to support and care for larger and larger groups as their brains (our brains) expanded in capacity. Dunbar's is the number of people with whom we can maintain a stable relationship — approximately 150.

Some back story

Professor Robin Dunbar of the University of Oxford has published considerable research on anthropology and evolutionary psychology. His work is informed by anthropology, sociology and psychology. Dunbar's Number is a cognitive boundary, one we are likely incapable of breaching. The number is based around two notions; that brain size in primates correlates with the size of the social groups they live among and that these groups in human primates are relative to communal numbers set deep in our evolutionary past. In simpler terms, 150 is about the maximum number of people with whom we can identify with, interact with, care about, and work to protect. Dunbar's Number falls along a logorithmic continuum, beginning with the smallest, most emotionally connected group of five, then expanding outward in multiples of three: 5, 15, 50, 150. The numbers in these concentric circles are affected by multiple variables, including the closeness and size of immediate and extended families, along with the greater cognitive capacity of some individuals to maintain stable relationships with larger than normal group sizes. In other words, folks with more cerebral candlepower can engage with larger groups. Those with lesser cognitive powers, smaller groups.

The number that triggers "compassion collapse" might be different for individuals, but I think it may begin to unravel along the continuum of Dunbar's relatable 150. We can commiserate with 5 to 15 to 150 people because upon those numbers, we can overlay names and faces of people we know: our families, friends and coworkers, the members of our clan. In addition, from an evolutionary perspective, that number is important. We needed to care if bands of our clan were being harmed by raids, disaster, or disease, because our survival depended on the group staying intact. Our brains developed the capacity to care for the entirety of the group but not beyond it. Beyond our ingroup was an outgroup that may have competed with us for food and safety and it served us no practical purpose to feel sad that something awful had happened to them, only to learn the lessons so as to apply them for our own survival, e.g., don't swim with hippos.


Imagine losing 10 family members in a house fire. Now instead, lose 10 neighbors, 10 from a nearby town, 10 from Belgium, 10 from Vietnam 10 years ago. One could almost feel the emotion ebbing as the sentence drew to a close.

There are two other important factors which contribute to the softening of our compassion: proximity and time. While enjoying lunch in Santa Fe, we can discuss the death toll in the French revolution with no emotional response but might be nauseated to discuss three children lost in a recent car crash around the corner. Conflict journalists attempt to bridge these geotemporal lapses but have long struggled to ignite compassion in their home audience for far-flung tragedies, Being a witness to carnage is an immense stressor, but the impact diminishes across the airwaves as the kilometers pile up.

A Dunbar Correlation

Where is the inflection point at which people become statistics? Can we find that number? In what way might that inflection point be influenced by the Dunbar 150?

"Yes, the Dunbar number seems relevant here," said Gad Saad, PhD., the evolutionary behavioral scientist from the John Molson School of Business at Concordia University, Montreal, in an email correspondence. Saad also recommended Singer's work.

I also went to the wellspring. I asked Professor Dunbar by email if he thought 150 was a reasonable inflection point for moving from compassion into statistics. He graciously responded, lightly edited for space.

Professor Dunbar's response:

"The short answer is that I have no idea, but what you suggest is perfect sense. . . . One-hundred and fifty is the inflection point between the individuals we can empathize with because we have personal relationships with them and those with whom we don't have personalized relationships. There is, however, also another inflection point at 1,500 (the typical size of tribes in hunter-gatherer societies) which defines the limit set by the number of faces we can put names to. After 1,500, they are all completely anonymous."

I asked Dunbar if he knows of or suspects a neurophysiological aspect to the point where we simply lose the capacity to manage our compassion:

"These limits are underpinned by the size of key bits of the brain (mainly the frontal lobes, but not wholly). There are a number of studies showing this, both across primate species and within humans."

In his literature, Professor Dunbar presents two reasons why his number stands at 150, despite the ubiquity of social networking: the first is time — investing our time in a relationship is limited by the number of hours we have available to us in a given week. The second is our brain capacity measured in primates by our brain volume.

Friendship, kinship and limitations

"We devote around 40 percent of our available social time to our 5 most intimate friends and relations," Dunbar has written, "(the subset of individuals on whom we rely the most) and the remaining 60 percent in progressively decreasing amounts to the other 145."

These brain functions are costly, in terms of time, energy and emotion. Dunbar states, "There is extensive evidence, for example, to suggest that network size has significant effects on health and well-being, including morbidity and mortality, recovery from illness, cognitive function, and even willingness to adopt healthy lifestyles." This suggests that we devote so much energy to our own network that caring about a larger number may be too demanding.

"These differences in functionality may well reflect the role of mentalizing competencies. The optimal group size for a task may depend on the extent to which the group members have to be able to empathize with the beliefs and intentions of other members so as to coordinate closely…" This neocortical-to-community model carries over to compassion for others, whether in or out of our social network. Time constrains all human activity, including time to feel.

As Dunbar writes in The Anatomy of Friendship, "Friendship is the single most important factor influencing our health, well-being, and happiness. Creating and maintaining friendships is, however, extremely costly, in terms of both the time that has to be invested and the cognitive mechanisms that underpin them. Nonetheless, personal social networks exhibit many constancies, notably in their size and their hierarchical structuring." Our mental capacity may be the primary reason we feel less empathy and compassion for larger groups; we simply don't have the cerebral apparatus to manage their plights. "Part of friendship is the act of mentalizing, or mentally envisioning the landscape of another's mind. Cognitively, this process is extraordinarily taxing, and as such, intimate conversations seem to be capped at about four people before they break down and form smaller conversational groups. If the conversation involves speculating about an absent person's mental state (e.g., gossiping), then the cap is three — which is also a number that Shakespeare's plays respect."

We cannot mentalize what is going on in the minds of people in our groups much beyond our inner circle, so it stands to reason we cannot do it for large groups separated from us by geotemporal lapses.

Emotional regulation

In a paper, C. Daryl Cameron and Keith B. Payne state, "Some researchers have suggested that [compassion collapse] happens because emotions are not triggered by aggregates. We provide evidence for an alternative account. People expect the needs of large groups to be potentially overwhelming, and, as a result, they engage in emotion regulation to prevent themselves from experiencing overwhelming levels of emotion. Because groups are more likely than individuals to elicit emotion regulation, people feel less for groups than for individuals."

This argument seems to imply that we have more control over diminishing compassion than not. To say, "people expect the needs of large groups to be potentially overwhelming" suggests we consciously consider what that caring could entail and back away from it, or that we become aware that we are reaching and an endpoint of compassion and begin to purposely shift the framing of the incident from one that is personal to one that is statistical. The authors offer an alternative hypothesis to the notion that emotions are not triggered by aggregates, by attempting to show that we regulate our emotional response as the number of victims becomes perceived to be overwhelming. However, in the real world, for example, large death tolls are not brought to us one victim at a time. We are told, about a devastating event, then react viscerally.

If we don't begin to express our emotions consciously, then the process must be subconscious, and that number could have evolved to where it is now innate.

Gray matter matters

One of Dunbar's most salient points is that brain capacity influences social networks. In his paper, The Social Brain, he writes: "Path analysis suggests that there is a specific causal relationship in which the volume of a key prefrontal cortex subregion (or subregions) determines an individual's mentalizing skills, and these skills in turn determine the size of his or her social network."

It's not only the size of the brain but in fact, mentalizing recruits different regions for ingroup empathy. The Stanford Center for Compassion and Altruism Research and Education published a study of the brain regions activated when showing empathy for strangers in which the authors stated, "Interestingly, in brain imaging studies of mentalizing, participants recruit more dorsal portions of the medial prefrontal cortex (dMPFC; BA 8/9) when mentalizing about strangers, whereas they recruit more ventral regions of the medial prefrontal cortex (BA 10), similar to the MPFC activation reported in the current study, when mentalizing about close others with whom participants experience self-other overlap."⁷

It's possible the region of the brain that activates to help an ingroup member evolved for good reason, survival of the group. Other regions may have begun to expand as those smaller tribal groups expanded into larger societies.

Rabbit holes

There is an eclectic list of reasons why compassion may collapse, irrespective of sheer numbers:

(1) Manner: How the news is presented affects viewer framing. In her book, European Foreign Conflict Reporting: A Comparative Analysis of Public News, Emma Heywood explores how tragedies and war are offered to the viewers, which can elicit greater or lesser compassionate responses. "Techniques, which could raise compassion amongst the viewers, and which prevail on New at Ten, are disregarded, allowing the victims to remain unfamiliar and dissociated from the viewer. This approach does not encourage viewers to engage with the sufferers, rather releases them from any responsibility to participate emotionally. Instead compassion values are sidelined and potential opportunities to dwell on victim coverage are replaced by images of fighting and violence."

(2) Ethnicity. How relatable are the victims? Although it can be argued that people in western countries would feel a lesser degree of compassion for victims of a bombing in Karachi, that doesn't mean people in countries near Pakistan wouldn't feel compassion for the Karachi victims at a level comparable to what westerners might feel about a bombing in Toronto. Distance has a role to play in this dynamic as much as in the sound evolutionary data that demonstrate a need for us to both recognize and empathize with people who look like our communal entity. It's not racism; it's tribalism. We are simply not evolved from massive heterogeneous cultures. As evolving humans, we're still working it all out. It's a survival mechanism that developed over millennia that we now struggle with as we fine tune our trust for others.

In the end

Think of compassion collapse on a grid, with compassion represented in the Y axis and the number of victims running along the X. As the number of victims increases beyond one, our level of compassion is expected to rise. Setting aside other variables that may raise compassion (proximity, familiarity etc.), the level continues to rise until, for some reason, it begins to fall precipitously.

Is it because we've become aware of being overwhelmed or because we have reached max-capacity neuron load? Dunbar's Number seems a reasonable place to look for a tipping point.

Professor Dunbar has referred to the limits of friendship as a "budgeting problem." We simply don't have the time to manage a bigger group of friends. Our compassion for the plight of strangers may drop of at a number equivalent to the number of people with who we can be friends, a number to which we unconsciously relate. Whether or not we solve this intellectual question, it remains a curious fact that the larger a tragedy is, the more likely human faces are to become faceless numbers.