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Other countries have different goals. The South Korean government announced a plan to install 1 gigabit per second of symmetric fiber data access in every home by 2012. Hong Kong, Japan and the Netherlands are heading in the same direction. Australia plans to get 93 percent of homes and businesses connected to fiber. In the U.K., a 300 Mbps fiber-to-the-home service will be offered on a wholesale basis.

In a sense, the FCC adopted the cable companies’ business plan as the country’s goal. The commission’s embrace of asymmetric access -- slower upload than download speeds -- also serves the carriers’ interests: Only symmetric connections would allow every American to do business from home rather than use the Internet simply for high-priced entertainmen

The first step is to decide what the goal of telecommunications policy should be. Network access providers -- and the FCC -- are stuck on the idea that not all Americans need high-speed Internet access. The FCC’s National Broadband Plan of March 2010 suggested that the minimum appropriate speed for every American household by 2020 should be 4 megabits per second for downloads and 1 Mbps for uploads. These speeds are enough, the FCC said, to reliably send and receive e-mail, download Web pages and use simple video conferencing.

Think of it this way: With a dialup connection, backing up 5 gigabytes of data (now the standard free plan offered by many storage companies) would take 20 days. Over a standard (3G) wireless connection, it would take two and a half days. Over a 4G connection it would be more than seven hours, and over a cable DOCSIS 3.0 connection, an hour and a half. With a gigabit fiber-to-the-home connection, it can be done in less than a minute.

If the U.S. had a fully fiber-based network, Hollywood blockbusters could be downloaded in 12 seconds, video conferencing would become routine, and every household could see 3D and Super HD images. Americans could be connected instantly to their co-workers, their families, their teachers and their health-care monitors. To make this happen, though, the U.S. needs to move to a utility model, based on the assumption that all Americans require fiber-optic Internet access at reasonable prices. How much would it cost to bring fiber to the homes of all Americans? Corning Inc. (GLW), the American glass manufacturer, and others have estimated that it would take between $50 billion and $90 billion.

The Internet has taken the place of the telephone as the world’s basic, general-purpose, two-way communication medium. All Americans need high-speed access, just as they need clean water, clean air and electricity. But they have allowed a naive belief in the power and beneficence of the free market to cloud their vision. As things stand, the U.S. has the worst of both worlds: no competition and no regulation.

The United States ranked 25th out of 29 in the percentage of people 15 to 19 years old who were enrolled in schools and colleges and 23rd in the percentage of people in that cohort not participating in either education, employment or training.

We have the highest teen fertility rate, and among the highest infant mortality rates. We have one of the lowest child immunization rates and lowest average birth weights.

Although our children were among the most likely to exercise, they were also the most overweight.

American children were in the bottom third when ranking their own level of “life satisfaction.” Our children were 28th out of 29 countries in ranking the quality of their relationships (the French were dead last). Only 56 percent of children in the United States find their classmates “kind and helpful,” 73 percent find it “easy to talk” to their mothers and 59 percent find it “easy to talk” to their fathers.

We have the third highest homicide rate among developed countries,

a third of parents fear for their children’s physical safety at school,

Despite History’s mantle of preserving and purveying an accurate picture of the past, hewing to the letter of historical accuracy wasn’t possible in the case of a dramatic series based on fragmented documentation, hence a large degree of dramatic license was employed.

“I especially had to take liberties with ‘Vikings’ because no one knows for sure what happened in the Dark Ages,” Mr. Hirst said. “Very little was written then.” The bottom line, he explained, was: “We want people to watch it. A historical account of the Vikings would reach hundreds, occasionally thousands, of people. Here we’ve got to reach millions.”

he was hard put to replicate authentic fabrics and woods. One of the biggest challenges he faced, he added, was improvising lighting sources for Viking homes and halls, which had no windows, making engaging photography of a strictly realistic interior setting impossible.

Only the most elite North Koreans have been allowed access to the Internet, and even they are watched

d becomes increasingly connected, their decision to be virtually isolated is very much going to affect their physical world, their economic growth and so forth

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“As the worl

their daily energy expenditure is about the same as most Americans, suggesting physical activity is not the reason for their relative good health.

The prevailing notion in sleep medicine is that humans evolved to go to bed when the sun goes down, and that by and large we stay up much later than we should because we are flooded with artificial light

Dr. Siegel and his colleagues found no evidence of this. The hunter-gatherer groups they studied, which slept outside or in crude huts, did not go to sleep when the sun went down. Usually they stayed awake three to four hours past sunset, with no light exposure other than the faint glow of a small fire that would keep animals away and provide a bit of warmth in the winter. Most days they would wake up about an hour before sunrise.

In a typical night, they slept just six and a half hours — slightly less than the average American

“I think this paper is going to transform the field of sleep,” said John Peever, a sleep expert at the University of Toronto who was not involved in the new research. “It’s difficult to envision how we can claim that Western society is highly sleep deprived if these groups that live without all these modern distractions and pressing schedules sleep less or about the same amount

in the new study, the hunter-gatherer societies were found to have a sleep period — meaning the time they were actually in bed — of roughly seven to eight and a half hours, which he said was consistent with his group’s recommendations.

the question of how much sleep people require was a delicate one. “Really it’s just the amount that allows people to wake up feeling refreshed and alert,

Dr. Siegel said he worried that putting a number on the amount of sleep people require could push those who get less to resort to using sleeping pills, which carry severe side effects. About 5 percent of Americans take sleeping pills, a percentage that has doubled in the past two decades.

called the new study “excellent and very timely,” and he said it suggests that sleep quality is much more important than quantity.

Some historians have also argued that it is not natural for people to sleep straight through the night. They say that before the introduction of artificial light it was normal for people to sleep in two intervals separated by an hour of wakefulness, a phenomenon known as segmented sleep, or “first” and “second” sleep.

But Dr. Siegel said he always questioned those assertions because there were no rigorous studies of sleep behaviors back then. He and his colleagues decided that one way to get some insight was to study cultures relatively unaffected by artificial light.

Among those they chose to follow were the Hadza people, who spend their days hunting and foraging in northern Tanzania, much as their ancestors have for tens of thousands of years; the San of Namibia, who have lived as hunter-gatherers in the Kalahari for at least 20,000 years; and the Tsimané, a seminomadic group that lives in the Andean foothills of Bolivia, near the farthest reaches of the human migration out of Africa.

The researchers found that in addition to sleeping roughly similar amounts each night, the three groups rarely took naps during the day and did not sleep in two separate intervals at night.

“The Hadza and the San live in the area where we know humans evolved, and then the Tsimané live in some sense at the end of the human migration,” he said. “The fact that we see very similar sleep times gives me great confidence that this is how all of our ancestors slept.”

Their sleep did not seem to be problematic. Chronic insomnia, which affects 20 percent to 30 percent of Americans, occurred in just 2 percent of the hunter-gatherers. The San and the Tsimané did not even have a word for it in their languages.

ambient temperature may be a major factor. The groups did not go sleep at sunset and they did not wake up at sunrise, suggesting that light exposure did not have much influence on their sleep patterns. But they almost always fell asleep as temperatures began to fall at night, and they would wake up right as the temperatures were rising again.

This suggests that humans may have evolved to sleep during the coldest hours of the day, perhaps as a way to conserve energy

“Today we sleep in environments with fixed temperatures, but none of our ancestors did,” Dr. Siegel said. “We evolved to sleep in a natural environment where the temperature falls at night. Whether we can treat insomnia by putting people in an environment where the temperature is modulated in this way is something to be studied in the future.

Enter Elkins. Young, articulate and photogenic, she was fired up with outrage over her findings. Her book cut against an abiding belief that the British had managed and retreated from their empire with more dignity and humanity than other former colonial powers, such as the French or the Belgians.

Some academics shared her enthusiasm. By conveying the perspective of the Mau Mau themselves, Britain’s Gulag marked a “historical breakthrough”, says Wm Roger Louis, a historian of the British empire at the University of Texas at Austin. Richard Drayton of King’s College London, another imperial historian, judged it an “extraordinary” book whose implications went beyond Kenya. It set the stage for a rethinking of British imperial violence, he says, demanding that scholars reckon with colonial brutality in territories such as Cyprus, Malaya, and Aden (now part of Yemen).

But many other scholars slammed the book. No review was more devastating than the one that Bethwell A Ogot, a senior Kenyan historian, published in the Journal of African History. Ogot dismissed Elkins as an uncritical imbiber of Mau Mau propaganda. In compiling “a kind of case for the prosecution”, he argued, she had glossed over the litany of Mau Mau atrocities: “decapitation and general mutilation of civilians, torture before murder, bodies bound up in sacks and dropped in wells, burning the victims alive, gouging out of eyes, splitting open the stomachs of pregnant women”. Ogot also suggested that Elkins might have made up quotes and fallen for the bogus stories of financially motivated interviewees. Pascal James Imperato picked up the same theme in African Studies Review. Elkins’s work, he wrote, depended heavily on the “largely uncorroborated 50-year-old memories of a few elderly men and women interested in financial reparations”.

In this very long book, she really doesn’t bring out any more evidence than that for talking about the possibility of hundreds of thousands killed, and talking in terms almost of genocide as a policy,” says Philip Murphy, a University of London historian who directs the Institute of Commonwealth Studies and co-edits the Journal of Imperial and Commonwealth History. This marred what was otherwise an “incredibly valuable” study, he says. “If you make a really radical claim about history, you really need to back it up solidly.

Critics didn’t just find the substance overstated. They also rolled their eyes at the narrative Elkins told about her work. Particularly irksome, to some Africanists, was her claim to have discovered an unknown story

During the Mau Mau war, journalists, missionaries and colonial whistleblowers had exposed abuses. The broad strokes of British misbehaviour were known by the late 60s, Berman argued. Memoirs and studies had added to the picture. Britain’s Gulag had broken important new ground, providing the most comprehensive chronicle yet of the detention camps and prison villages.

among Kenyanists, Berman wrote, the reaction had generally been no more than: “It was as bad as or worse than I had imagined from more fragmentary accounts.”

If, at that late date,” he wrote, “she still believed in the official British line about its so-called civilising mission in the empire, then she was perhaps the only scholar or graduate student in the English-speaking world who did.”

she believes there was more going on than the usual academic disagreement. Kenyan history, she says, was “an old boys’ club”.

“Who is controlling the production of the history of Kenya? That was white men from Oxbridge, not a young American girl from Harvard,” she says.

for years clues had existed that Britain had also expatriated colonial records that were considered too sensitive to be left in the hands of successor governments. Kenyan officials had sniffed this trail soon after the country gained its independence. In 1967, they wrote to Britain’s Foreign Office asking for the return of the “stolen papers”. The response? Blatant dishonesty, writes David M Anderson, a University of Warwick historian and author of Histories of the Hanged, a highly regarded book about the Mau Mau war.

Internally, British officials acknowledged that more than 1,500 files, encompassing over 100 linear feet of storage, had been flown from Kenya to London in 1963, according to documents reviewed by Anderson. Yet they conveyed none of this in their official reply to the Kenyans

The turning point came in 2010, when Anderson, now serving as an expert witness in the Mau Mau case, submitted a statement to the court that referred directly to the 1,500 files spirited out of Kenya. Under legal pressure, the government finally acknowledged that the records had been stashed at a high-security storage facility that the Foreign Office shared with the intelligence agencies MI5 and MI6. It also revealed a bigger secret. This same repository, Hanslope Park, held files removed from a total of 37 former colonies.

A careful combing-through of these documents might normally have taken three years. Elkins had about nine months. Working with five students at Harvard, she found thousands of records relevant to the case: more evidence about the nature and extent of detainee abuse, more details of what officials knew about it, new material about the brutal “dilution technique” used to break hardcore detainees

The British government, defeated repeatedly in court, moved to settle the Mau Mau case. On 6 June 2013, the foreign secretary, William Hague, read a statement in parliament announcing an unprecedented agreement to compensate 5,228 Kenyans who were tortured and abused during the insurrection. Each would receive about £3,800. “The British government recognises that Kenyans were subject to torture and other forms of ill-treatment at the hands of the colonial administration,” Hague said. Britain “sincerely regrets that these abuses took place.” The settlement, in Anderson’s view, marked a “profound” rewriting of history. It was the first time Britain had admitted carrying out torture anywhere in its former empire.

some scholars find aspects of Elkins’s vindication story unconvincing. Philip Murphy, who specialises in the history of British decolonisation, attended some of the Mau Mau hearings. He thinks Elkins and other historians did “hugely important” work on the case. Still, he does not believe that the Hanslope files justify the notion that hundreds of thousands of people were killed in Kenya, or that those deaths were systematic. “Probably most of the historical criticisms of the book still stand,” he says. “I don’t think the trial really changes that.

second debate triggered by the Mau Mau case concerns not just Elkins but the future of British imperial history. At its heart is a series of documents that now sits in the National Archives as a result of Britain’s decision to make public the Hanslope files. They describe, in extensive detail, how the government went about retaining and destroying colonial records in the waning days of empire. Elkins considers them to be the most important new material to emerge from the Hanslope disclosure.

One record, a 1961 dispatch from the British colonial secretary to authorities in Kenya and elsewhere, states that no documents should be handed over to a successor regime that might, among other things, “embarrass” Her Majesty’s Government. Another details the system that would be used to carry out that order. All Kenyan files were to be classified either “Watch” or “Legacy”. The Legacy files could be passed on to Kenya. The Watch files would be flown back to Britain or destroyed. A certificate of destruction was to be issued for every document destroyed – in duplicate. The files indicate that roughly 3.5 tons of Kenyan documents were bound for the incinerator.

. Broadly speaking, she thinks end-of-empire historians have largely failed to show scepticism about the archives. She thinks that the fact that those records were manipulated puts a cloud over many studies that have been based on their contents. And she thinks all of this amounts to a watershed moment in which historians must rethink their field.

Murphy says Elkins “has a tendency to caricature other historians of empire as simply passive and unthinking consumers in the National Archives supermarket, who don’t think about the ideological way in which the archive is constructed”. They’ve been far more sceptical than that, he says. Historians, he adds, have always dealt with the absence of documents. What’s more, history constantly changes, with new evidence and new paradigms. To say that a discovery about document destruction will change the whole field is “simply not true”, he says. “That’s not how history works.”

Some historians who have read the document-destruction materials come away with a picture of events that seems less Orwellian than Elkins’s. Anderson’s review of the evidence shows how the purging process evolved from colony to colony and allowed substantial latitude to local officials. Tony Badger, a University of Cambridge professor emeritus who monitored the Hanslope files’ release, writes that there was “no systematic process dictated from London”

Badger sees a different lesson in the Hanslope disclosure: a “profound sense of contingency”. Over the decades, archivists and Foreign Office officials puzzled over what to do with the Hanslope papers. The National Archives essentially said they should either be destroyed or returned to the countries from which they had been taken. The files could easily have been trashed on at least three occasions, he says, probably without publicity. For a variety of reasons, they weren’t. Maybe it was the squirrel-like tendency of archivists. Maybe it was luck. In retrospect, he says, what is remarkable is not that the documents were kept secret for so many years. What is remarkable is that they survived at all.

conservative pundits convinced that U.S. colleges are leftist indoctrination camps have taken up the Republican students’ cause. Fox News’s Bill O’Reilly referred to the professor’s words as an “assault” on her students — conflating words with physical violence in the same way liberals so often do.

In a similar vein, the conservative group Turning Point USA recently published a “Professor Watchlist,” a catalogue of what it thinks are dangerous and “anti-American” professors who deserve public shaming for allegedly trying to “advance a radical agenda in lecture halls.” (Among those “radical agenda” items: advocating gun control, calling Ted Cruz’s infamous “New York values” statement anti-Semitic.)

Shaming them for making “small change” is a way to reduce numbers of protesters, not to increase them. Shaming can also create a legacy of political inactivity: Turning kids off from involvement now could encourage decades of disengagement.

“Flash activism,” the label I prefer for online protest forms such as online petition, can be effective at influencing targets in specific circumstances

Numbers matter. Whether you are a high school coach, Bank of America, the Obama administration or a local council member, an overwhelming flood of signatures, emails and phone calls can be quite persuasive

Online protest is easy, nearly cost-free in democratic nations, and can help drive positive social change. In addition, flash activism can help build stronger movements in the future. If current activists view online support as an asset, rather than with resentment because it is different from “traditional” methods, they can mobilize vast numbers of people.

People who participate in one online action may join future efforts, or even broaden their involvement in activism. For example, kids who engage in politics online often do other political activities as well.

Critics often worry that valuing flash activism will “water down” the meaning of activism. But that misses the point and is counterproductive. The goal of activism is social change, not nostalgia or activism for activism’s sake. Most people who participate in flash activism would not have done more – rather, they would have done nothing at all.

Scholars and advocates alike should stop asking if flash activism matters. We should also stop assuming that offline protest always succeeds. Instead, we should seek out the best ways to achieve specific goals. Sometimes the answer will be an online petition, sometimes it will be civil disobedience and sometimes it will be both – or something else entirely.

The real key for grassroots social change is to engage as many people as possible. That will require flexibility on how engagement occurs. If people want larger and more effective social movements, they should be working to find ways to include everyone who will do anything, not upholding an artificial standard of who is a “real activist” and who is not.

Until now, the Internet has mainly created new avenues for old behaviors. Roughly nine of 10 computer breaches involve theft or business espionage,

You cannot do a cost-benefit analysis of something that imperils society’s economic and political foundations. The plausible cost is infinite

It does jeopardize our way of life. It undermines the integrity of our political institutions and popular faith in them.

More than this, it warns us that our physical safety and security are at risk. Hostile hackers can hijack power grids, communication networks, transportation systems and much more.

What Putin and Russian hackers allegedly did shatters this pattern. Their hacking — as interpreted by both the CIA and the FBI — qualifies as state-sponsored aggression

The rise of cyberattacks, says a recent report from the American Enterprise Institute, ranks with three great strategic shifts in military history — first, the rise of sea power; next, the advent of air power; and most recently, the opening of space.

The emergence of cyberspace “poses the most daunting challenge yet . . . [because] its implications are more sweeping,” AEI asserts. It touches almost every aspect of society and alters the nature of global conflict.

We could move some vital data networks offline — that is, we could build systems independent of the Internet.

Another possibility is to impose security standards on the “Internet of things

It’s also possible to streamline agencies overseeing cyberspace.

Americans are of two minds about the Internet. They love social media and gadgets, such as smartphones. Meanwhile, they hate its threat to privacy and the dangers of hacking. Putin’s gift to America is that he is forcing us to face the contradictions.

The problem is not just Russia’s bad behavior. It’s the nature of the Internet. If we don’t acknowledge that, we will increasingly become its victim.

Instead, the women still chasing the having-it-all dream are the group we’re calling the Scale Backers—13 women who dialed down high-powered careers to simultaneously be full-time mothers and workers. And in the process of downsizing, they became, ironically, the most stressed-out of our subjects, attempting to do everything well, but feeling like they excelled at none of it.

Having it all has always been exhausting, but our interviewees are attempting it not because they’re aspiring to be CEO, but under the illusion of work-life balance.

A January 2013 study by the American Sociological Association backed the idea that flexible work environments make for happier, healthier, more productive workers. But even our subjects with flexible or work-from-home jobs, while grateful for the arrangement, still seemed to operate from a baseline of frazzled.

While our Opt Out group has left the primary earning to their spouses, and our High Achievers have hired the help they need to run their lives, the Scale Backers insist on having one (super-flexed) leg in every realm—leaving many of them hobbling through their days.

Having it all today means answering emails from the playground, abruptly ending a conference call to deliver a forgotten lunch, and giving both work and your kids short shrift.

And yet, when asked what might make their lives easier, most of these subjects demurred, saying they wouldn’t change a thing. Every one of them described her life, complete with compromises and chaos, as a good life. Most seemed pleased at how their lives had turned out 25 years after college, despite sacrifices for both their career and their children. And many women admitted that part of what they liked about attempting to juggle it all is the sense of engineering their own destiny in every avenue.

Mr. Arnade sees the divide as between the front-row kids at school waving their hands to be called on, and the back-row kids, quiet and less advantaged. The front row, he says, needs to learn two things. “One is how much the rest of the country is hurting. It’s not just economic pain, it’s a deep feeling of meaninglessness, of humiliation, of not being wanted.” Their fears and anxieties are justified. “They have been excluded from participating in the great wealth of this country economically, socially and culturally.”

Second, “The front-row kids need humility. They need to look in the mirror, ‘We messed this up, we’ve been in charge 30 years and haven’t delivered much.’ ” “They need to take stock of what has happened.”

Both conservative and progressive intellectuals say Trump voters are racist, dumb. When a conservative looks at a minority community and says, ‘They’re lazy,’ the left answers, ‘Wait a minute, let’s look at the larger context, the availability of jobs, structural injustice.’ But the left looks at white working-class poverty and feels free to judge and dismiss.”

he bolsters that approach, Adams says, by “exploiting the business model” like an entrepreneur. In this model, which “the news industry doesn’t have the ability to change … the media doesn’t really have the option of ignoring the most interesting story,” says Adams, contending that Trump “can always be the most interesting story if he has nothing to fear and nothing to lose.”

what Trump is doing? He is acknowledging the suffering of some, Adams says, and then appealing emotionally to that.

“The most important thing when you study hypnosis is that you learn that humans are irrational,

Having nothing to lose essentially then increases his chance of winning, because it opens up his field of rhetorical play.

Within that context, here is what Candidate Trump is doing to win campaign hearts and minds

1. Trump knows people are basically irrational.

2. Knowing that people are irrational, Trump aims to appeal on an emotional level.

“The evidence is that Trump completely ignores reality and rational thinking in favor of emotional appeal,” Adams writes. “Sure, much of what Trump says makes sense to his supporters, but I assure you that is coincidence. Trump says whatever gets him the result he wants. He understands humans as 90-percent irrational and acts accordingly.”

3. By running on emotion, facts don’t matter.

“There are plenty of important facts Trump does not know. But the reason he doesn’t know those facts is – in part – because he knows facts don’t matter. They never have and they never will. So he ignores them.

4. If facts don’t matter, you can’t really be “wrong.”

“If you understand persuasion, Trump is pitch-perfect most of the time. He ignores unnecessary rational thought and objective data and incessantly hammers on what matters (emotions).”

“Did Trump’s involvement in the birther thing confuse you?” Adams goes on to ask. “Were you wondering how Trump could believe Obama was not a citizen? The answer is that Trump never believed anything about Obama’s place of birth. The facts were irrelevant, so he ignored them while finding a place in the hearts of conservatives.

5. With fewer facts in play, it’s easier to bend reality.

Among the persuasive techniques that Trump uses to help bend reality, Adams says, are repetition of phrases; “thinking past the sale” so the initial part of his premise is stated as a given; and knowing the appeal of the simplest answer, which relates to the concept of Occam’s razor.

6. To bend reality, Trump is a master of identity politics — and identity is the strongest persuader.

“The best Trump linguistic kill shots,” Adams writes,”have the following qualities: 1. Fresh word that is not generally used in politics; 2. Relates to the physicality of the subject (so you are always reminded).”

: “Identity is always the strongest level of persuasion. The only way to beat it is with dirty tricks or a stronger identity play. … [And] Trump is well on his way to owning the identities of American, Alpha Males, and Women Who Like Alpha Males. Clinton is well on her way to owning the identities of angry women, beta males, immigrants, and disenfranchised minorities.

History is alive, and she has a lot to teach us. I quote William Faulkner (what history professor hasn't?) who famously declared: "The past is never dead. It is not even past."

History is not a deck of cards from which to randomly draw for comparative purposes. It is an immense repository of human thinking, doing, and being that can and should help us be slightly less narrow-minded and shortsighted than our forefathers and foremothers sometimes were. Good uses of history require more substance, unpacking, and analysis than a few quick sound bites can provide.

People aren't always sure what to do with history. But the laziest use is to make facile comparisons between then and now, this person and that.

Mostly these comparisons are shallow and not rooted in any depth of meaningful knowledge of the past. They rely on caricatures and selective historical tidbits in a way that, indeed, just about anyone can be compared to anyone else.

These comparisons tend to come in two forms: those meant to elevate, and those meant to denigrate. Both use historical comparisons to accomplish their goals

By associating their 21st-century political agendas with the 18th-century American rebels, modern Tea Partiers collapse the distance between then and now in order to legitimize their cause.

Slavery is another popular go-to comparison. But ... sorry, Kesha: Recording contracts are not like slavery. And Republicans: ”Neither is the national debt, Obamacare, income tax, or gun control. Or the TSA, global warming, or Affirmative Action.

In fact, presidential hopeful Ben Carson's comparisons to slavery were so common that he was parodied as suggesting that even buying a Megabus ticket is like slavery (which, sadly, is almost believable).

History as critique, honest assessment, and self-examination. Thinking long and hard about the treatment of Native Americans, past and present. American imperialism. Slavery, and its intertwining with the rise of modern capitalism. Xenophobia. Suppression of women's rights. These stories need to be told and retold, painful as they may be.

People who make historical comparisons don't actually believe that Ted Cruz is like Robespierre. But then why bother? The reason there aren't longer expositions of how exactly Trump is like Hitler is because, well, very quickly the analogy would break down. Male ... popular ... racist ... oh, never mind. These analogies are usually politically motivated, shallow, and intended to shock or damn. It's just lazy, and more politics as usual.

When we say that Trump or Obama is like Hitler, we slowly water down our actual knowledge of the very historical things we are using for comparison. When people link their frustration with the Affordable Care Act or gun control to slavery, they greatly diminish the historical magnitude and importance of a horrific historical reality that irreversibly altered the lives of 10 to 12 million enslaved Africans who were forced across the Atlantic to the Americas between the 15th and 19th centuries. Scholars speak of a "social death" that came from the incredible violence, emotional damage, and physical dislocation that took place during the Middle Passage and beyond.

The GOP's current crisis mirrors the French Revolution? Ted Cruz is like Robespierre? Please. You are granting way too much historical importance to the self-implosion of a political movement that rose to power over the past 30 years on a platform of moralistic piety, militarism, anti-abortion, and xenophobia.

One charitable reading of why people make these comparisons is that they fear we will end up in unpleasant and unfortunate situations that are like past circumstances. Behind the charge of Trump being a fascist is the fear that Trump, if elected president, will rule unilaterally in a way that oppresses certain segments of the population.

The only problem is that history really doesn't repeat itself. If anything, it remixes themes, reprises melodies, and borrows nasty racist ideologies. There are no exact historical analogs to today's politicians — jackasses or saviors.

"History doesn't repeat itself. But it rhymes." And it is in the rhyming that history still plays an important role.

Historian William Bouwsma once noted that the past is not the "private preserve of professional historians." Rather, he argued that history is a public utility, like water and electricity. If Bouwsma is right, the kind of history most people want is like water: clear, available at the turn of a knob, and easily controllable. But really, history is more like electricity shooting down the string of Franklin's fabled kite: wild, with alternating currents and unexpected twists, offshoots, and end results.

Voting for Trump won't bring about an American Holocaust, but it could usher in a new yet rhyming phase of history in which US citizens and immigrants from certain backgrounds are targeted and legally discriminated against, have their civil liberties curtailed, and even get forcibly relocated into "safe" areas. Hard to imagine?

American history, as Jon Stewart brilliantly reminded us, is at its core a series of events in which the current dominant group (no matter how recently established) dumps on the newest immigrant group. Catholics. Jews. Irish. Asians. They've all been in the crosshairs. All of them have been viewed as just as dangerous as the current out-group: Muslims.

Flippant comparisons also belittle and ignore the way that historical trauma creates immense ongoing psychological pain and tangible collective struggle that continues through generations, even up through the present.

If simplistic comparisons cheapen the past and dumb down our public discourse, using the past to understand how we got to where we are today is actually productive. It increases knowledge, broadens our perspective, and helps connect dots over time.

If Americans truly want to understand this GOP moment, we need not look to revolutionary France, but to the circa-1970s US, when the modern Republican Party was born. I know, Republican pundits like to call themselves the "party of Lincoln," but that is mostly nonsense

To compare Trump to Napoleon or Hitler is to make a vacuous historical comparison that obscures more than it reveals. But it is actually constructive to try to understand Trump as a fairly logical outcome of some of the cultural impulses that drove the moral majority and the religious right in the late 1970s and early 1980s. It tells us how we got here and, potentially, how to move forward.

Done well, history gives us perspective; it helps us gain a longer view of things. Through an understanding of the past we come to see trends over time, outcomes, causes, effects. We understand that stories and individual lives are embedded in larger processes. We learn of the boundless resilience of the human spirit, along with the depressing capacity for evil — even the banal variety — of humankind.

The past warns us against cruelty, begs us to be compassionate, asks that we simply stop and look our fellow human beings in the eyes.

Why, then, is Obama-Washington still on my office wall? Mostly to remind me of the irony of history. Of its complexity. That the past might not be past but is also not the present. It is a warning against mistaking progression in years with progress on issues. It is a reminder that each one of us plays an important part in the unfolding of history.

That means history is best kept on a tight leash.

The unstated reason for Xi’s unwillingness to disavow the Mao era is that Mao is not just China’s Stalin. The Soviet Union was able to discard Stalin because it still had Lenin to fall back on as its founding father. For the Communist party of China, Mao is Stalin and Lenin combined; attack Mao and his era and you attack the foundations of the Communist state.

on a broader level, history is especially sensitive because change in a communist country often starts with history being challenged.

Building on the work of his predecessors, especially Hu Jintao and his call for a Taoist-sounding “harmonious society” (hexie shehui), Xi’s ideological programme includes an explicit embrace of traditional ethical and religious imagery.

efforts to commemorate the past are often misleading or so fragmentary as to be meaningless. Almost all plaques at historical sites, for example, tell either partial histories or outright lies

The Communist party does not just suppress history, it recreates it to serve the present. In China, this has followed the party’s near self-destruction in the Cultural Revolution, which led to a desperate search for ideological legitimacy. At first, this was mainly economic, but following the massacre of pro-democracy protesters in Tiananmen Square in June 1989, the party began to promote itself more aggressively as the defender of Chinese culture and tradition.

One way it has begun to do this has been to position itself as a protector of “intangible cultural heritage”, a term adopted from Unesco, which keeps a country-by-country list of traditions important to specific nations. As opposed to world heritage sites, which are physical structures such as the Great Wall or Forbidden City, intangible heritage includes music, cuisine, theatre, and ceremonies.

As late as 1990s China, some of these traditions were still labelled “feudal superstition”, a derogatory term in the communist lexicon synonymous with backward cultural practices. For example, traditional funerals were widely discouraged, but now are on the government list of intangible culture. So, too, religious music that is performed exclusively in Taoist temples during ceremonies.

the country’s urban centres are built on an obliterated past, which only sometimes seeps into the present through strange-sounding names for streets, parks, and subway stops.

In 2013, according to a news report on 5 December of that year, Xi visited Confucius’s hometown of Qufu, picked up a copy of The Analects – a book of sayings and ideas of the great sage – as well as a biography of him, and declared: “I want to read these carefully.” He also coined his own Confucianesque aphorism – “A state without virtue cannot endure.” The next year, he became the first Communist party leader to participate in a commemoration of Confucius’s birthday.

The China Dream was to be Xi Jinping’s contribution to national sloganeering – every top leader has to have at least one

Xi’s idea was simple to grasp – who doesn’t have a dream? The slogan would become associated with many goals, including nationalism and China’s surge to global prominence, but domestically, its imagery was almost always linked to traditional culture and virtues

Liu spoke freely, without notes, for 90 minutes about something that might seem obscure but that was slowly shaking China’s intellectual world: the discovery of long-lost texts from 2,500 years ago

The texts we were here to learn about had been written a millennium later on flat strips of bamboo, which were the size of chopsticks. These writings did not describe the miscellanea of court life – instead, they were the ur-texts of Chinese culture. Over the past 20 years, three batches of bamboo slips from this era have been unearthed. Liu was there to introduce the third – and biggest – of these discoveries, a trove of 2,500 that had been donated to Tsinghua University in 2008.

The texts stem from the Warring States period, an era of turmoil in China that ran from the 5th to the 3rd centuries BC. All major Chinese schools of thought that exist today stem from this era, especially Taoism and Confucianism, which has been the country’s dominant political ideology, guiding kings and emperors – at least in theory – until the 20th century.

“It’s as though suddenly you had texts that discussed Socrates and Plato that you didn’t know existed,” Sarah Allan, a Dartmouth university professor who has worked with Liu and Li in the project, told me a few months before I heard Liu speak. “People also say it’s like the Dead Sea scrolls, but they’re more important than that. This isn’t apocrypha. These texts are from the period when the core body of Chinese philosophy was being discussed. They are transforming our understanding of Chinese history.”

One of the surprising ideas that comes through in the new texts is that ideas that were only alluded to in the Confucian classics are now revealed as full-blown schools of thought that challenge key traditional ideas. One text, for example, argues in favour of meritocracy much more forcefully than is found in currently known Confucian texts

Until now, the Confucian texts only allowed for abdication or replacement of a ruler as a rare exception; otherwise kingships were hereditary – a much more pro-establishment and anti-revolutionary standpoint. The new texts argue against this. For an authoritarian state wrapping itself in “tradition” to justify its never-ending rule, the implications of this new school are subtle but interesting. “This isn’t calling for democracy,” Allan told me, “but it more forcefully argues for rule by virtue instead of hereditary rule.

One answer might be to display a new kind of tech brand: physical products that aren’t so much dominated by new technology, but instead informed by the theories and practices that have ruled the tech business.

“In a lot of ways apps seem played out,”

hey say they have applied an engineering mind-set to creating ingestible items. Traditional coffee is an inconsistent product, they argue — each cup may have significantly more or less caffeine than the last — and it can have undesirable side effects, like jitteriness.

Go Cubes, which the pair developed after a long prototyping process involving many different ingredients, are meant to address these shortcomings. The cubes are more portable than coffee, they offer a precise measure of caffeine, and because they include some ingredients meant to modulate caffeine’s sharpest effects, they produce a more focused high.

Ministry of Supply, an apparel company started by entrepreneurs who were unsatisfied with business clothing that couldn’t take the punishment that we ladle on athletic clothes, uses engineering techniques to create its products.

“My broader theory is that as the world shifts from TV, movies, magazines and newspapers to the Internet, one of the secondary effects of that is that cultural influence shifts from places like New York and L.A. to the Bay Area,”