The best of Paul Krugman vs Reddit

Nobel prize-winning economist fields questions from "The Front Page of the Internet". What could go

Paul Krugman has a new book coming out, which means he is doing a lot of thing that one doesn't normally see from a Nobel Prize-winning economist. First he debated Ron Paul on Bloomberg TV, including a bizarre interlude involving inflation in third-century Rome. Then yesterday, he did a question and answer session with Reddit, the hugely popular social news site which brands itself "The Front Page of the Internet".

Under the headline IamA Nobel Prize-winning economist and New York Times columnist, Krugman – username nytimeskrugman – spent a couple of hours answering questions from Reddit users. Here are some of his best answers.

Responding to user sychosomat, who asked about the problems caused by the inability to perform experiments in economics, Krugman wrote:

Well, not being able to do experiments is a problem, but not as bad as all that. We do have statistical techniques for trying to sort out what's going on, although I'm skeptical about their power. But mainly we can look for "natural experiments", which often tell you a lot. In End This Depression I talk about how wars provide a natural experiment on fiscal policy; right now forced austerity in Europe is providing another set of natural experiments.

You may ask whether both sides in every debate won't nonetheless find ways to support their positions. My answer here is that this is not, in fact, happening. On the question of whether austerity is expansionary or contractionary, we had some alleged evidence for expansionary effects, but it was quickly shot down by the normal process of scholarly discussion. In any normal scientific debate, this would now be a settled issue.

I guess that what I'm saying here is that while the non-experimental nature of economics is an issue, the apparent inability to resolve differences that you see right now is about politics, not the inherent problems of the discipline.

Cthwaites asked how close we are to repeating the mistake in 1925, when Britain returned to the gold standard for seven disastrous years. Kurgman:

All around Europe's periphery they're doing it as we speak, er, type. The euro has served as the functional equivalent of the gold standard.

The difference for, say, Spain is that since they don't have their own currency, it's much harder to change course than it would have been for Britain under gold. But if you look at, say, Latvia, they're doing the full Churchill -- and being hailed as a role model even as they enforce a devastating slump on themselves.

Asked by Curbsidejohnman to give the best argument against austerity, Krugman replied:

I think it is to point out that if nobody is buying, nobody can sell. Austerity in a depressed economy makes the depression deeper, and that is, I believe, a point people can grasp. Of course, it's a point made easier to grasp now that the Irish and others have given us such clear examples of how bad the results of austerity can be.

Bloometal asked about Krugman's views on behavioural economics. Krugman wrote:

I think there's a lot of very good work in behavioral econ. But I don't expect a unified theory for many, many years. There are just two many ways the assumption of perfect rationality can fail, and I don't think we have enough broader understanding to put it all in one package.

That said, we can use behavioral econ even as it is, as long as we're modest about modeling. As long as we are prepared to say "this is how people actually seem to behave" without demanding general theorems -- for example the obvious reluctance to accept nominal wage cuts -- we can go a long way toward analyzing real-world issue in a way that can guide both prediction and policy.

Finally, one of Krugman's answers which works best without any context:

Shave around it every day, and get your wife to clip it fairly often.

(Oh all right, he was talking about his beard)

Photograph: Getty Images/Reddit.com

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

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Love a good box set? Then you should watch the Snooker World Championships

The game relies on a steady arm, which relies on a steady nerve. The result is a slow creeping tension needs time and space to be properly enjoyed and endured. 

People are lazy and people are impatient. This has always been so – just ask Moses or his rock – but as illustrated by kindly old Yahweh, in those days they could not simply answer those impulses and stroll on.

Nowadays, that is no longer so. Twitter, YouTube and listicles reflect a desire for complex and involved issues, expansive and nuanced sports – what we might term quality – to be condensed into easily digestible morsels for effort-free enjoyment.

There is, though, one notable exception to this trend: the box set. Pursuing a novelistic, literary sensibility, it credits its audience with the power of sentience and tells riveting stories slowly, unfolding things in whichever manner that it is best for them to unfold.

In the first episode of the first series of The Sopranos, we hear Tony demean his wife Carmela's irritation with him via the phrase “always with the drama”; in the seventh episode of the first series we see his mother do likewise to his father; and in the 21st and final episode of the sixth and final series, his son uses it on Carmela. It is precisely this richness and this care that makes The Sopranos not only the finest TV show ever made, but the finest artefact that contemporary society has to offer. It forces us to think, try and feel.

We have two principal methods of consuming art of this ilk - weekly episode, or week-long binge. The former allows for anticipation and contemplation, worthy pursuits both, but of an entirely different order to the immersion and obsession offered by the latter. Who, when watching the Wire, didn’t find themselves agreeing that trudat, it's time to reup the dishwasher salt, but we’ve run out, ain’t no thing. Losing yourself in another world is rare, likewise excitement at where your mind is going next.

In a sporting context, this can only be achieved via World Championship snooker. Because snooker is a simple, repetitive game, it is absorbing very quickly, its run of play faithfully reflected by the score.

But the Worlds are special. The first round is played over ten frames – as many as the final in the next most prestigious competition – and rather than the usual week, it lasts for 17 magical days, from morning until night. This bestows upon us the opportunity to, figuratively at least, put away our lives and concentrate. Of course, work and family still exist, but only in the context of the snooker and without anything like the same intensity. There is no joy on earth like watching the BBC’s shot of the championship compilation to discover that not only did you see most of them live, but that you have successfully predicted the shortlist.

It is true that people competing at anything provides compelling drama, emotion, pathos and bathos - the Olympics proves this every four years. But there is something uniquely nourishing about longform snooker, which is why it has sustained for decades without significant alteration.

The game relies on a steady arm, which relies on a steady nerve. The result is a slow creeping tension needs time and space to be properly enjoyed and endured. Most frequently, snooker is grouped with darts as a non-athletic sport, instead testing fine motor skills and the ability to calculate angles, velocity and forthcoming shots. However, its tempo and depth is more similar to Test cricket – except snooker trusts so much in its magnificence that it refuses to compromise the values which underpin it.

Alfred Hitchcock once explained that if two people are talking and a bomb explodes without warning, it constitutes surprise; but if two people are talking and all the while a ticking bomb is visible under the table, it constitutes suspense. “In these conditions,” he said, “The same innocuous conversation becomes fascinating because the public is participating in the scene. The audience is longing to warn the characters on the screen: ‘You shouldn't be talking about such trivial matters. There is a bomb beneath you and it is about to explode!’”

Such is snooker. In more or less every break, there will at some point be at least one difficult shot, loss of position or bad contact – and there will always be pressure. Add to that the broken flow of things – time spent waiting for the balls to stop, time spent prowling around the table, time spent sizing up the table, time spent cleaning the white, time spent waiting for a turn – and the ability for things to go wrong is constantly in contemplation.

All the more so in Sheffield’s Crucible Theatre. This venue, in its 40th year of hosting the competition, is elemental to its success. Place is crucial to storytelling, and even the word “Crucible” – whether “a ceramic or metal container in which metals or other substances may be melted or subjected to very high temperatures,” “a situation of severe trial”, or Arthur Miller’s searing play – conjures images of destruction, injustice and nakedness. And the actual Crucible is perhaps the most atmospheric arena in sport - intimate, quiet, and home to a legendarily knowledgeable audience, able to calculate when a player has secured a frame simply by listening to commentary through an earpiece and applauding as soon as the information is communicated to them.

To temper the stress, snooker is also something incredibly comforting. This is partly rooted in its scheduling. Working day and late-night sport is illicit and conspiratorial, while its presence in revision season has entire cohorts committing to “just one more quick frame”, and “just one more quick spliff”. But most powerfully of all, world championship snooker triggers memory and nostalgia, a rare example of something that hasn’t changed, as captivating now as it was in childhood.

This wistfulness is complemented by sensory pleasure of the lushest order. The colours of both baize and balls are the brightest, most engaging iterations imaginable, while the click of cue on ball, the clunk of ball on ball and the clack of ball on pocket is deep and musical; omnipresent and predictable, they combine for a soundtrack that one might play to a baby in the womb, instead of whale music or Megadeth.

Repeating rhythms are also set by the commentators, former players of many years standing. As is natural with extended coverage of repetitive-action games, there are numerous phrases that recur:

“We all love these tactical frames, but the players are so good nowadays that one mistake and your opponent’s in, so here he is, looking to win the frame at one visit ... and it’s there, right in the heart of the pocket for frame and match! But where’s the cue ball going! it really is amazing what can happen in the game of snooker, especially when we’re down to this one-table situation.”

But as omniscient narrators, the same men also provide actual insight, alerting us to options and eventualities of which we would otherwise be ignorant. Snooker is a simple game but geometry and physics are complicated, so an expert eye is required to explain them intelligibly; it is done with a winning combination of levity and sincerity.

The only essential way in which snooker is different is the standard of play. The first round of this year’s draw featured eight past winners, only two of whom have made it to the last four, and there were three second-round games that were plausible finals.

And just as literary fiction is as much about character as plot, so too is snooker. Nothing makes you feel you know someone like studying them over years at moments of elation and desolation, pressure and release, punctuated by TV confessions of guilty pleasures, such as foot massages, and bucket list contents, such as naked bungee jumping.

It is probably true that there are not as many “characters” in the game as once there were, but there are just as many characters, all of whom are part of that tradition. And because players play throughout their adult life, able to establish their personalities, in unforgiving close-up, over a number of years, they need not be bombastic to tell compelling stories, growing and undergoing change in the same way as Dorothea Brooke or Paulie Gualtieri.

Of no one is this more evident that Ding Junhui, runner-up last year and current semi-finalist this; though he is only 30, we have been watching him almost half his life. In 2007, he reached the final of the Masters tournament, in which he faced Ronnie O’Sullivan, the most naturally talented player ever to pick up a cue – TMNTPETPUAC for short. The crowd were, to be charitable, being boisterous, and to be honest, being pricks, and at the same time, O’Sullivan was playing monumentally well. So at the mid-session interval, Ding left the arena in tears and O’Sullivan took his arm in consolation; then when Ding beat O’Sullivan in this year’s quarter-final, he rested his head on O’Sullivan’s shoulder and exchanged words of encouragement for words of respect. It was beautiful, it was particular, and it was snooker.

Currently, Ding trails Mark Selby, the “Jester from Leicester” – a lucky escape, considering other rhyming nouns - in their best of 33 encounter. Given a champion poised to move from defending to dominant, the likelihood is that Ding will remain the best player never to win the game’s biggest prize for another year.

Meanwhile, the other semi-final pits Barry Hawkins, a finalist in 2013, against John Higgins, an undisputed great and three-time champion. Higgins looks likely to progress, and though whoever wins through will be an outsider, both are eminently capable of taking the title. Which is to say that, this weekend, Planet Earth has no entertainment more thrilling, challenging and enriching than events at the Crucible Theatre, Sheffield.

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