Quotulatiousness

June 4, 2018

The economic damage of tariffs

Filed under: Economics, History, Politics, USA — Tags: , , , , — Nicholas @ 05:00

Tim Worstall fisks a recent Pat Buchanan brain fart article on the glories of erecting tariff walls against foreign trade:

Pat Buchanan has been going on for decades about how wondrous tariffs are and if only they were brought back then things would be just peachy. Sadly, this all seems to be based on his not understanding trade, tariffs, nor apparently even history. That’s not a good set of recommendations for a policy about trade and tariffs, one that has been tried many a time in history.

Now, it is entirely true that if we returned to a more Hamiltonian policy era then we’d all be richer. But that wouldn’t be because we had tariffs which paid for government rather than an income or corporate tax. It’s because government would be confiscating a very much smaller portion of what we all produce to pay for itself. If the Feds took 3% of everything we do instead of the current 18% or so then sure, we’d all be richer. But that’s true however that tax is raised.

[…]

His argument is that, protected from foreign competition, American business was able to develop and grow into being world beaters. No, I don’t think this is true – I insist that behind tariff barriers companies stagnate. Indeed it’s standard economics that the medium to long term effects of trade are that the competition from foreigners is what makes the domestic companies stronger and more productive. But put that argument to one side. Assume that Buchanan is correct.

For his conclusion to be correct then it must have been true that the total costs of trade were rising in that time period. Total costs being tariffs plus transport. Only if the total costs were rising was protection rising. The tariffs are only part of the story. And as it happens total protection was falling over this time period. The falls in the costs of transport – for the US externally primarily the steam ship – were greater than the rises in the tariffs. Thus the US was becoming more open to trade at this time when industry was booming and growing to world class levels.

That’s not an argument in favour of trade protection now, is it?

    The U.S. relied on tariffs to convert from an agricultural economy in 1800 to the mightiest manufacturing power on earth by 1900.

Well, it’s also true that what the US was inside those tariff barriers was the largest free trade area in the world. I’m the guy insisting that free trade makes places grow, Pat the opposite. And the place with more free trade among more people than anywhere else grows fastest? That’s a point in my favour, no, not Pat’s? Remember, the US Constitution expressly forbids the individual states from having tariffs between them…..that regulation is left to the Feds who have never imposed them.

    How have EU nations run up endless trade surpluses with America? By imposing a value-added tax, or VAT, on imports from the U.S., while rebating the VAT on exports to the USA. Works just like a tariff.

No, a VAT does not work like a tariff. In no manner at all does it do so in fact. As every economist keeps trying to point out. Within the EU all goods and services, no matter where they’re made, pay the exact same rate of VAT. Well, OK, ladies unmentionables pay a lower rate than motor cars, that’s true, but all unmentionables pay the same rate, all cars. There is no difference made between domestic and foreign production. It’s entirely unlike a tariff therefore, the crucial component of which is that distinction made between home and foreign production.

Stuff made in the EU and sold in the US pays no VAT. Stuff made in the US and sold in the US pays no VAT. Again, we’ve no distinction by source or origin, this is entirely and completely unlike a tariff.

The History of Non-Euclidian Geometry – The Great Quest – Extra History – #2

Filed under: History, Science — Tags: , , , , — Nicholas @ 04:00

Extra Credits
Published on 2 Jun 2018

For hundreds of years, Euclid’s geometry disappeared with the fall of the Roman Empire. But in Constantinople, Islamic mathematicians, including Al-Khwarizmi (who gave us the word “algebra”) worked long and hard on proving the Fifth Postulate.

L. Neil Smith on his time in the salt mines of the Star Wars universe

Filed under: Books, Business — Tags: , , — Nicholas @ 03:00

Around the time I picked up my first L. Neil Smith novel (Tom Paine Maru), I saw his name on a couple of Star Wars tie-in novels. I didn’t buy them, as I’ve rarely found tie-in work to be worth much unless you’re a huge fan of the larger franchise. By the time I’d gotten around to reading Tom Paine Maru and rushed back to buy all the rest of Smith’s available works, the Star Wars books had gone. I haven’t seen any of them in my travels since then. In the latest Libertarian Enterprise, Smith explains how the books came to be:

In 1983, I was chosen (or condemned — it depends how you look at these things), by Del Rey Books, a division of Random House, and Lucasfilm Ltd., to write three little ”exploitation” novels about the Star Wars character Lando Calrissian, specifically because I wasn’t Brian Daley, author of three similar books about another Star Wars character, Han Solo.

“Lando Calrissian, meet Londo Mollari. Lando, Londo. Londo, Lando … ”

The late Brian Daley was one of the kindest, gentlest, most generous men I’ve ever known, a colleague to be proud of, and it was bewildering trying to figure out why the movie company had told the book publisher, when arranging for the second set of books, “Anybody but Brian Daley!”

Brian loved Millennium Falcon. He was like a little kid when he got invited to go out to Hollywood and was most excited that he got to clamber around inside the set. But it turned out that he had accidentally and unknowingly allowed himself to become associated with the losing faction in some kind of petty internal corporate feud and found himself rendered persona non grata.

My editor at Del Rey obligingly brought my name up. I was extremely reluctant to write in anybody else’s corpus, but I needed the money very badly — around that time I’d spent two weeks with nothing in the house to eat but a bag of shredded coconut. When requested, my editor sent LucasFilm a “sample” of my work — a copy of my highly-political libertarian first novel, The Probability Broach. I’d love to have been there, a fly on the wall, when they saw it. Remember Beaker, from Muppet Labs, with a shock of bright red hair, a big red nose, great big eyes, whimpering and terrified of every known phenomenon? It must have been a lot like that.

In any case, LucasFilm freaked out, and, hypocritically asked that Brian be brought back into the project as my co-author, apparently to temper my politically incorrect passions. My editor told me later that he blew up dramatically, and told them “These are authors we’re dealing with here, not Hollywood writers, they don’t write by committee!” They backed down eventually, but I had to promise I would write no politics in the books — which, given the attitude they were displaying, I interpreted to mean as much politics as I could possibly squeeze in before they squealed.

I was told to write about Lando but leave all other Star Wars characters and other things alone (I did end up using mynocks). I told them I would have the spaceship, or I would give the project a miss. Brian started calling us “the Brotherhood of the Falcon”. My editor advised me to politely decline any invitations to come to Hollywood, and stay out of company politics, which I gladly did. I invented a number of animals for the books but was told that only animals made up by George Lucas could be capitalized.

In the beginning, they gave me sixteen weeks to write three books which I regarded as tough, but doable. “But wait! We have to approve your outlines first!” And by the time they finished — altering my arch-villain Rokur Gepta to something other than a “Dark Lord of Sith” and making other insignificant changes, I had nine weeks left. For two and a half months, I got up each morning and wrote. My cute little fiancee came home for lunch and then I wrote. We had supper and I wrote. Then I collapsed and started the whole thing over the next day. Forget anything resembling a real life. This was just before word processors came along, and I did the whole thing in one draft, as Robert Heinlein advised, on a Sperry-Remington knock-off of an IBM Selectric II. It took a long, long time to recover my health.

How to turn a No.78 into a Scrub Plane | Paul Sellers

Filed under: Tools, Woodworking — Tags: , , — Nicholas @ 02:00

Paul Sellers
Published on 14 May 2018

Preparing rough stock can be time-consuming. A scrub plane can really help ease this process. Old ones are hard to get hold, and new ones are expensive. Paul shows how you can easily convert a No. 78 rebate plane into an excellent scrub plane.

For more information on these topics, see https://paulsellers.com or https://woodworkingmasterclasses.com

QotD: Pushing the Confederacy down the memory hole

Filed under: History, Politics, Quotations, Religion, USA — Tags: , , , — Nicholas @ 01:00

Lately, I have been mightily irritated by the politically-correct campaign to permanently banish the old Confederate flag, and all music associated with the Southern cause, or any symbol that it once existed, before it was comprehensively defeated a century-and-a-half ago. Memorials of Robert E. Lee are being treated as memorials of Adolf Q. Hitler.

It strikes me that even under the old lamentable cotton-plantation slave system of the South, people mixed and got to smell one another — rich and poor, black and white, genteel and grotesque. That, the most forgotten slogan of the Dixie Land was her war cry: “Down with the Eagle, and up with the Cross!” That, it is the Cross of Saint Andrew astride the old Confederate flag that is most galling to the hyper-secular, liberal mind. That, the greatest triumph of the Union propaganda was to tar all those flag-bearers in the way our contemporary media demean all dissenters from the current party line as “racists,” “sexists,” “phobes,” and nothing more. That, the principal crime of the South was to stand by the wording of the U.S. Constitution, and from the beginning, to get in the way of a grand national scheme for social engineering, which triumphed with Lincoln (though hardly a liberal by the standards of today). That, in the Southern view, the eagle swooped down on them, with claws.

Something similar is now happening in the division of “Red States” and “Blue”: in an America from which the Christian conception of the “common man” is being systematically expunged. All who resist the categories to which they have been assigned are instinctively rebelling; “victim” and “oppressor” alike. This is what “common men” will do, when tarred and pressed, often without fully understanding why they rebel. They remember, however obliquely, whose sons and daughters they are. That, no matter how low in social station, they are Christ’s, and not the segregated chattels of some malicious and incompetent — and intentionally divisive — Washington Nanny.

The recovery of USA, and more largely, the recovery of Christendom, turns on the recovery of this conception of the “common man” — as Man, not as member of a client group. This has nought to do with “equality,” for it is none of a government’s business to help one group get even with another. Rather it is to serve man as man. This is a matter that goes deeper even than slavery, as Saint Paul explained. It is an unarguable, even mystical point. Where that conception survives, of the common in man, Christendom persists, and can potentially flourish.

David Warren, “The common man”, Essays in Idleness, 2016-08-29.

June 3, 2018

Conrad von Hötzendorf – A Military Genius? I OUT OF THE TRENCHES

Filed under: Europe, History, Military, WW1 — Tags: , , , — Nicholas @ 04:00

The Great War
Published on 2 Jun 2018

Chair of Wisdom Time!

“[Libertarians] are the great optimists of the world”

Filed under: Australia, Economics, Liberty — Tags: , — Nicholas @ 03:00

At Catallaxy Files, Australian senator David Leyonhjelm has a guest post, covering the contents of his maiden speech:

When I became the first overt libertarian to be elected to the Australian Senate in 2013, I thought I would use my maiden speech to try and sum up my world view. In this speech, I outlined why I believe the role of governments should be limited to the protection of life, liberty and private property. I tried to highlight the importance of personal responsibility, the dangers of creeping government interference, and the fundamental right to be left alone so long as we’re not harming anyone else.

If I were to give an elevator spiel to someone who wanted to know more about libertarianism, I’d simply tell them that “a libertarian believes you should be able to keep more of your stuff and be left the hell alone”. It sounds too simple to work, but it does, and that’s what is truly great about it.

When you look at nations that slash government red tape, protect private property rights and safeguard civil liberties, you see societies where opportunity abounds, people escape from poverty, and civil society flourishes.

In fact, these policies have done more to lift people out of poverty than any government program anywhere. Free markets and free trade are responsible for one of the most remarkable achievements in human history: from 35% of the world’s population living on US$1.90 or less in 1990 to 10.7% in 2013, according to the World Bank.

As I see it, those who believe in a limited role for governments and the promotion of personal freedom, aka libertarians, are the great optimists of the world. An optimist would never dream of dictating how and when someone else should do something unless it was to prevent harm to another person. An optimist would never look at someone more successful and seek to grab some of their income or wealth. An optimist would never want to see more restrictions on our everyday lives.

Conversely, people who seek to control others, to take more of their earnings, and to redistribute it according to their values, tend to have a pessimistic view. Only a pessimist could look at society and think, we need more control over the daily lives of others. Only a pessimist would think their better off neighbours should be taxed more heavily or that their hard earned should be used on even more government programs.

A lot of the people who fall on the left side of Australian politics will probably decry the fact that I think they’re pessimists. They’ll say they’re the ones with a true and caring heart, and that redistributing wealth is a lofty goal because it helps those in need. This is demonstrably false, as all the evidence shows, but I will happily admit that such people have a heart, if not brains. The old saying, “if you’re not a socialist at 20 you have no heart, but if you’re still a socialist at 40 you have no brains”, still explains a lot.

Brand X – Nuclear Burn (1976)

Filed under: Britain, Media — Tags: , — Nicholas @ 02:00

aquarianrealm
Published on Nov 7, 2010

AMG: Brand X were a British jazz-rock fusion outfit formed by Genesis drummer Phil Collins and Atomic Rooster guitarist John Goodsall as a side project from their regular groups. Their initial lineup also included keyboardist Robin Lumley and bassist Percy Jones (the Liverpool Scene, the Scaffold). Brand X’s debut album, Unorthodox Behaviour, was released in 1976; a live album, Livestock, and the studio effort Moroccan Roll followed in 1977. Collins left the group to concentrate on Genesis, and for 1978’s Masques, he was replaced by Al Di Meola drummer Chuck Burgi, as well as additional keyboardist Peter Robinson, who had played with Stanley Clarke. Three further albums — 1979’s Product, 1980’s Do They Hurt?, and 1982’s Is There Anything About? — followed before the group disbanded. In the mid-’90s, Lumley, Goodsall, and Jones reunited, issuing several live collections in the years to follow.

H/T to ESR for the link.

QotD: Price controls just make things more expensive in real terms

Filed under: Economics, Government, Quotations — Tags: , , , — Nicholas @ 01:00

One of the perennial, and pernicious, political ideas is that if things are “too expensive” then we can fix that by just passing a law to make them less expensive. We see this just about everywhere and its sadly not limited to the more idiot sector of the left. Although of course it thrives there. Venezuela is a complete and total mess because Hugo Chavez and Nicolas Maduro thought they would make life cheaper by limiting prices by law. Payday lending doesn’t exist in certain states because people like Elizabeth Warren insist that interest rates should not go “too high”. Those usury laws mean that interest rates are infinite – as the lending simply isn’t available at all. And yes, people over on the right have made the same sort of mistake – Nixon tried to fix gas prices after all.

Price fixing just always leads to things getting more expensive. As David Friedman explains:

    The result – that price control results in a cost to the consumer, pecuniary plus nonpecuniary, higher than the uncontrolled price – does not depend on the details of the [supply and demand] diagram. Consumers cannot consume more gas than producers produce, so the nonpecuniary cost must be large enough to drive quantity demanded down to quantity supplied. Quantity supplied is lower than without price control, so cost to the consumer must be higher.

Tim Worstall, “Memo For Would Be Price Fixers – Price Controls Always Make Things More Expensive”, Forbes.com, 2016-08-16.

June 2, 2018

YouTube Won’t Host Our Homemade Gun Video. So We Posted It on PornHub Instead.

Filed under: Business, Government, Law, Liberty, Media — Tags: , , , , , — Nicholas @ 04:00

ReasonTV
Published on 31 May 2018

Reason has a new video out today explaining how to put together a homemade handgun using some very simple tools and parts you can buy online. But you won’t find it on our YouTube channel.
_____

After the March for Our Lives rally, YouTube announced that it would no longer allow users to post videos that contain “instructions on manufacturing a firearm.”

Our video and its accompanying article are part of a package of stories in Reason‘s “Burn After Reading” issue. It includes a bunch of how-to’s, including how to bake pot brownies, how to use bitcoin anonymously, how to pick the lock on handcuffs, and how to hire an escort.

The whole issue is a celebration of free speech and our way of documenting how utterly futile of all kinds of prohibitions can be.

We made a video showing how easy it is to DIY a Glock because we wanted to show how the First Amendment reinforces the Second Amendment. If a bunch of journalists can build a handgun in their kitchen, we can assume it’ll be pretty hard to keep guns out of the hands of motivated criminals.

If YouTube prevents us from uploading the video, have they violated our First Amendment rights?

“YouTube of old days was this amazing thing that has become the digital library of Alexandria on the Internet,” says Karl Kasarda, the co-host of InRangeTV, a weekly YouTube show about guns. The show used to survive on ad revenue, until YouTube started de-monetizing certain forms of content. Once YouTube made it impossible for Kasarda to make money on its platform, he started posting his content to other places, including PornHub.

Last October Prager University, a conservative video production shop, sued YouTube, saying it had restricted the audience for content and alleging that the company was “unlawfully censoring its educational videos and discriminating against its right to freedom of speech.”

But here’s the thing: YouTube is a private platform. There is nothing in the First Amendment (or the Second) that requires them to host our gun video. Reason can turn down articles for any cause that we choose. We can do it because we don’t like the color of the author’s hair, or because we don’t like the font she used in her pitch email. We wouldn’t be violating a single constitutional right by doing so.

We wish YouTube would run our video. It’s awesome. But equally awesome is YouTube’s right — our right — not to run content we don’t like.

Karl Kasarda is correct that YouTube is the closest thing we have to the Library of Alexandria. It still doesn’t mean they have to carry our video.

YouTube is hardly the first to test this principle. In 1972, a teachers union president who was running for state legislature sued The Miami Herald, insisting it run an editorial he had written after he was attacked in its pages. The Supreme Court correctly ruled that ordering a newspaper to print an editorial violates the First Amendment. After all, a newspaper is “more than a passive receptacle.”

Prager University argued that YouTube isn’t entitled to the same editorial discretion as The Miami Herald because it advertises itself as a “platform for free expression” that’s “committed to fostering a community where everyone’s voice can be heard.” A federal judge, thankfully, dismissed the Prager lawsuit, rejecting the company’s argument that YouTube is comparable to a “government entity” and thus must be open-access. A slew of other judges have arrived at the same conclusion.

YouTube deserves the same editorial latitude those judges gave to The Miami Herald in the 1970s and that Reason enjoys today.

And that’s one of the things our new gun video is celebrating. If YouTube doesn’t want to post it to their site, its loss. We’ll just post it to another platform. That’s what the free and open internet is all about. So if you want to see our video, you can watch it here at Reason.com — or head over to PornHub and see how to make your very own unregistered firearm.

Links:
https://reason.com/archives/2018/05/31/how-to-legally-make-your-own-o
https://www.pornhub.com/view_video.php?viewkey=ph5b0460dc60380

Edited by Todd Krainin. Narrated by Katherine Mangu-Ward. Written by Jim Epstein and Katherine Mangu-Ward. Cameras by Meredith Bragg.

The Robinson Affair (that the British establishment would like to “disappear”)

Filed under: Britain, Law, Media, Religion — Tags: , , , , — Nicholas @ 03:00

If you haven’t been paying attention to the British media, you might not have heard about Tommy Robinson and his crusade to expose the “Asian grooming gangs” that have been left almost undisturbed by the British police, prosecutors and (until very recently indeed) the media:

The controversy around him continued. In March, Robinson was suspended from Twitter, where he had almost half a million followers. The social-media site (which merrily allows terrorist groups like Lashkar e-Taiba to keep accounts) decided that Robinson should be suspended for tweeting out a statistic about Muslim rape gangs that itself originated from the Muslim-run Quilliam foundation. And it is on this matter that the latest episode in the Robinson drama started — and has now drawn worldwide attention.

Ten years ago, when the EDL was founded, the U.K. was even less willing than it is now to confront the issue of what are euphemistically described as “Asian grooming gangs” (euphemistic because no Chinese or Koreans are involved and what is happening is not grooming but mass rape). At the time, only a couple of such cases had been recognized. Ten years on, every month brings news of another town in which gangs of men (almost always of Pakistani origin) have been found to have raped young, often underage, white girls. The facts of this reality — which, it cannot be denied, sounds like something from the fantasies of the most lurid racist — have now been confirmed multiple times by judges during sentencing and also by the most mainstream investigative journalists in the country.

But the whole subject is so ugly and uncomfortable that very few people care to linger over it. Robinson is an exception. For him — as he said in a 2011 interview with the BBC’s Jeremy Paxman — the “grooming gangs” issue isn’t something that afflicts some far-off towns but people in the working-class communities that he knows. And while there are journalists (notably the Times’ Andrew Norfolk) who have spent considerable time and energy bringing this appalling phenomenon to light, most of British society has turned away in a combination of embarrassment, disgust, and uncertainty about how to even talk about this. Anyone who thinks Britain is much further along with dealing with the taboo of “grooming gangs” should remember that only last year the Labour MP for Rotherham, Sarah Champion, had to leave the shadow cabinet because she accurately identified the phenomenon.

Which brings me to last Friday. That was when Robinson was filming outside Leeds Crown Court, where the latest grooming-gang case was going on. I have to be slightly careful here, because although National Review is based in the U.S., I am not, and there are reporting restrictions on the ongoing case. Anyhow, Robinson was outside the court and appeared (from the full livestream) to be filming the accused and accosting them with questions on their way in. He also appeared to exercise some caution, trying to ensure he was not on court property.

But clearly he did not exercise enough caution, a strange fact given that last year Robinson had been found guilty of “contempt of court” for filming outside another rape-gang trial, one involving four Muslim men at Canterbury Crown Court. On that occasion Robinson was given a three-month prison sentence [PDF], which was suspended for a period of 18 months. Which meant he would be free so long as he did not repeat the offense.

Although Robinson appeared to be careful at Leeds Crown Court last Friday, to dance along the line of exactly what he could or could not livestream outside an ongoing trial with a suspended sentence hanging over his head was extraordinarily unwise. What happened next went around the world: The police turned up in a van and swiftly arrested Robinson for “breach of the peace.” Within hours Robinson had been put before one Judge Geoffrey Marson, who in under five minutes tried, convicted, and sentenced Robinson to 13 months. He was immediately taken to prison.

From that moment it was not just Robinson but the U.K. that entered a minefield of legal problems. In addition to the usual reporting restrictions on the ongoing trial, a reporting ban was put on any mention of Robinson’s arrest, swift trial, and conviction, meaning that for days people in the blogosphere and the international media got free rein to claim that Tommy Robinson had been arrested for no reason, that his arrest was a demonstration of a totalitarian state cracking down on free speech, and even (and this one is remarkably clueless as well as careless) that the recent appointment to the position of home secretary of Sajid Javid — who was born to Muslim parents — is the direct cause of Robinson’s recent arrest.

A Safer Berth – HMS Victory

Filed under: Britain, History, Military, Technology — Tags: , — Nicholas @ 02:00

NMRNPortsmouth
Published on Aug 21, 2017

An 18-month programme to re-support the world’s most famous warship HMS Victory sagging under her own weight is now underway.

QotD: The Dunning-Kruger Effect

Filed under: Humour, Quotations, Science — Tags: , — Nicholas @ 01:00

In the early hours of April 20 1995, police knocked on the door of McArthur Wheeler and arrested him for holding-up two Pittsburgh banks the previous day. Wheeler could hardly have been surprised that the police were on to him: wearing no mask or disguise, he had ambled into the banks during business hours and brandished a gun in full view of security cameras. Nevertheless, he was astonished, protesting “but I wore the juice!” Wheeler had formed the erroneous belief that lemon juice rendered people invisible on video.

Wheeler is now a legend in psychology, since it was his regrettable escapade that inspired two psychologists, David Dunning and Justin Kruger, to figure out whether we have a good sense of our own strengths and weaknesses. Dunning and Kruger set tests of grammar, logic and even having a sense of humour to a group of undergraduates. Then they asked them how they stacked up to others in the group. Was their grasp of logic and grammar better or worse than average? Were they better able than other students to distinguish funny from unfunny jokes?

Most students thought that they were above-average logicians, grammarians and wits but the Dunning-Kruger effect is not mere overconfidence. The competent people in the study had a reasonable grasp of where they stood in the pecking order. The incompetent ones were blissfully unaware of their incompetence. The good students knew that they were good; the bad students had no clue that they were bad.

Perhaps because Dunning and Kruger opened their 1999 research paper with the story of McArthur Wheeler, the Dunning-Kruger effect has now become a popular insult in some corners of the internet. We chuckle at people who are far too stupid to know that they are stupid. Unfortunately, such mockery misses the subtlety and universality of the effect. All of us are incompetent in some areas. When we stray into them, the Dunning-Kruger effect may be lurking.

The fundamental problem is a person trying to diagnose his own incompetence is — almost by necessity — likely to be missing the skills needed to make that diagnosis. Not knowing much grammar means you’re poorly placed to diagnose your ignorance of grammar.

Tim Harford, “Can trivia help us to be less ignorant of our own ignorance?”, TimHarford.com, 2016-09-06.

June 1, 2018

50 Miles To Paris – Third Battle Of The Aisne I THE GREAT WAR Week 201

Filed under: France, Germany, Greece, History, Military, USA, WW1 — Tags: , , , — Nicholas @ 04:00

The Great War
Published on 31 May 2018

The German spring offensive has lost some traction over the past few weeks but the Allies are still under pressure. With Operations Blücher and York, the Germans are getting within 50 miles of Paris again, just as they did in 1914.

Pushing back the beginnings of life on Earth

Filed under: Australia, Science — Tags: — Nicholas @ 03:00

In Wired, Rebecca Boyle discusses the fossil record of life and how recent discoveries keep moving the date further and further back in Earth’s history:

In the arid, sun-soaked northwest corner of Australia, along the Tropic of Capricorn, the oldest face of Earth is exposed to the sky. Drive through the northern outback for a while, south of Port Hedlund on the coast, and you will come upon hills softened by time. They are part of a region called the Pilbara Craton, which formed about 3.5 billion years ago, when Earth was in its youth.

Look closer. From a seam in one of these hills, a jumble of ancient, orange-Creamsicle rock spills forth: a deposit called the Apex Chert. Within this rock, viewable only through a microscope, there are tiny tubes. Some look like petroglyphs depicting a tornado; others resemble flattened worms. They are among the most controversial rock samples ever collected on this planet, and they might represent some of the oldest forms of life ever found.

Last month, researchers lobbed another salvo in the decades-long debate about the nature of these forms. They are indeed fossil life, and they date to 3.465 billion years ago, according to John Valley, a geochemist at the University of Wisconsin. If Valley and his team are right, the fossils imply that life diversified remarkably early in the planet’s tumultuous youth.

The fossils add to a wave of discoveries that point to a new story of ancient Earth. In the past year, separate teams of researchers have dug up, pulverized and laser-blasted pieces of rock that may contain life dating to 3.7, 3.95 and maybe even 4.28 billion years ago. All of these microfossils — or the chemical evidence associated with them — are hotly debated. But they all cast doubt on the traditional tale.

As that story goes, in the half-billion years after it formed, Earth was hellish and hot. The infant world would have been rent by volcanism and bombarded by other planetary crumbs, making for an environment so horrible, and so inhospitable to life, that the geologic era is named the Hadean, for the Greek underworld. Not until a particularly violent asteroid barrage ended some 3.8 billion years ago could life have evolved.

But this story is increasingly under fire. Many geologists now think Earth may have been tepid and watery from the outset. The oldest rocks in the record suggest parts of the planet’s crust had cooled and solidified by 4.4 billion years ago. Oxygen in those ancient rocks suggest the planet had water as far back as 4.3 billion years ago. And instead of an epochal, final bombardment, meteorite strikes might have slowly tapered off as the solar system settled into its current configuration.

« Newer PostsOlder Posts »

Powered by WordPress