Author Archives: Paul Braterman

Can we trust radiocarbon dating?

Willard Frank Libby, inventor of the method

Can we trust radiocarbon dating? Young Earth creationists tell us that we can’t. After all, it makes the same range of assumptions as other radiometric dating methods, and then some. Other methods benefit from internal checks or duplications, which in the case of radiocarbon dating are generally absent. There are numerous cases where it appears to give absurdly old ages for young material, while apparent ages of a few tens of thousands of years are regularly reported for material known on other evidence to be millions of years old. So can the Young Earth creationist1 objections be rebutted, and if so how?

The principle of radiometric dating is simple.2 If we know how much of a particular radioactive substance was present when a material formed, how much is still there, and Read the rest of this entry

A new argument against evolution

This from the Hebrides News:

If, as evolutionists claim, all of mankind evolved from the same primitive life-source, then how did we end up with 7,000 different languages? The Bible teaches in Genesis 11: 7-,9 that God created all the different languages at Babel…

If mankind had advanced through a so-called evolutionary process, then there should still be developing languages today. However, the stark fact is mankind’s languages are vanishing from civilization at an alarming rate – thus proving that evolution is a lie. And if evolution were true, then the process by which mankind has obtained 7,000 languages would be continuing today. Has the evolutionary process ceased? According to the Bible it never happened in the first place.

The Earth, of course, is 6,000 years old. As for purported evidence to the contrary, Read the rest of this entry

The Case Against Evolution – turning Chick on its head!!

From Old Earth Ministries by way of my friend Michael Roberts. Covers the scientific bases clearly and comprehensively, before exposing the contorted theology of Young Earth Creationism, and the arrogant presumption of its claim that evolution is incompatible with Christianity.

Disclosure: I see difficulties with religious beliefs, but these are not increased (perhaps the contrary) by our knowledge of evolution, and since they are not my difficulties it is not my place to comment on them, other than to point out that the YECist claim to “own” Christianity (or any other religion) is plainly false

Peddling and Scaling God and Darwin

Another good strip cartoon arguing for evolution in the style of Jack Chick  – without the spite

Source: The Case Against Evolution

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Grand Canyon Unconformities –and a Cambrian Island

I have discussed the Grand Canyon myself at , and strongly recommend this beautifully written and illustrated guide to its unconformities


A prominent ledge punctuates the landscape towards the bottom of the Grand Canyon. It’s the Tapeats Sandstone, deposited during the Cambrian Period about 520 million years ago, when the ocean was beginning to encroach on the North American continent, an event called the Cambrian Transgression. Above the ledge, you can see more than 3000 feet of near-horizontal sedimentary rocks, eroded into cliffs and slopes depending on their ability to withstand weathering and erosion. These rocks, deposited during the rest of the Paleozoic Era, are often used to demonstrate the vastness of geologic time–some 300 million years of it.

View of the Grand Canyon from the South Rim trail. Arrows point to the Cambrian Tapeats Sandstone. View of the Grand Canyon from the South Rim trail. Arrows point to the Tapeats Sandstone.

But the razor-thin surface between the Tapeats and the underlying Proterozoic-age rock reflects the passage of far more geologic time  –about 600 million years where the Tapeats sits on top the sedimentary rocks of the Grand…

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Why historical science is the best kind of science

This is for a planned wide-audience writing project on evolution, in which I pre-empt (rather than respond to) creationists’ counter-arguments, such as their downplaying of historical science. I would greatly value comments on this approach.

There are sciences, such as physics and chemistry, where we can perform experiments. There are other sciences, such as the science of planetary motion (and astronomy in general) where we cannot do this, but we can still carry out repeated observations in well-controlled circumstances, and devise theories with whose help we can make definite predictions. All of these are what I will call rule-seeking sciences. At the other extreme, we have sciences such as palaeontology and much of geology, which one might call historical sciences.1 With these, the aim is not so much to establish general rules, as to unravel and explain the specifics of what happened in the past. It is usual to regard the rule-seeking sciences as the most rigorous, to which the others should defer. This shows a deep misunderstanding of how science works, and, time and time again, when historical and rule-seeking sciences have come into conflict, it is historical science that has triumphed.

Rocks exposed at Grand Canyon, from Proterozoic to Permian. Click to enlarge

A few examples. The rocks clearly show (for detailed arguments, see e.g. here) that the Earth, and by implication the Sun, Read the rest of this entry

The dismantling of democracy, manipulation by algorithm, and what to do next; Part 2 ofAlgorithms, bullshit, and the dismantling of democracy

Updates 26 April: Faceook’s chief technology officer tells UK Parliament they did not read terms and conditions that enabled Cambridge Analytica’s data grab;  22 April, Facebook reported moving 1.5 billion users out of reach of pending EU privacy law; 2 May, Cambridge Analytica ceases trading, at least under that name, in US and UK. Part 1 here

Computational propaganda; a structural problem

Political bullshit was with us before the rise to dominance of on-line news sources, but developments over the past decade have made things far worse. Philip N. Howard, Professor of Internet Studies at Oxford, studies of fake news and elections, and way back in 2014 he coined the phrase “computational propaganda” to describe what was happening.

Opportunity for such propaganda is built into the very fabric of mass social media. Targeted ads and “suggestions” protocols are not optional features; they are what Facebook is for. People join groups that they agree with, and discussion among like-minded people moves consensus further away from the middle ground. Facebook’s recommendation system makes things even worse. An investigator for Buzzfeed, having signed up for antivaxx sites, found herself getting recommendations for groups about Pizzagate, the perils of fluoride, chemtrails, and Flat Earth.

Facebook also makes it easy to propagate fake news under false flags. Thus the page “Native Americans United”, apparently from the Dakota Pipeline protesters, with the message “Love water Not Oil, Protect Our Mother,” was produced by the Internet Research Agency, a Russian troll farm. The same people also gave us a page “Black matters”, ostensively part of the Black lives Matter movement. Special Prosecutor Mueller has indicted 13 members of this troll farm, though they are clearly unlikely to ever enter his jurisdiction.

False news has a further advantage over reality on social media because it is generally more novel and attention-grabbing. Thus an analysis of Twitter shows that false news spreads faster, deeper (longer chains of transmission), and more broadly (total number of tweets) than true news. This seems to be the work of individuals, rather than bots. See here; full report here.


L: Via New York Times, A false Facebook claim from Sri Lanka : “23,000 sterilization pills caught in Ampara. Thank you to the police. Muslim pharmacy owner from Akkaraipattu arrested. Who wants to sterilize the Sinhalese?”

Facebook algorithms automatically promote those messages that keep people spending more time on the site. Read the rest of this entry

Algorithms, bullshit, and the dismantling of democracy; (1) Bullshit

Bullshit is sticky, and by trying to stamp on it you spread it. Because its appeal is directly to the emotions, rational critique is beside the point, while virtuous outrage is as effective as support in sending it viral.

The term bullshit was introduced in its current sense by the philosopher Harry Frankfurt in 2005, and has been the subject of a rash of books since Trump’s emergence as a force to be reckoned with. I have chosen this particular volume as my jumping off point, because I am familiar with the author’s UK perspective, and because the author himself, as a contributor to Buzzfeed, is part of the revolution in electronic publishing that has made bullshit so much easier to propagate.

Lying is lying; bullshit is different

Lying is misrepresentation of reality. Bullshit is something far more serious. Bullshit invites us to follow the leader into a world of subjectivity, where reality comes second to what we choose to believe. Bullshit is the delegitimisation of reality, designed to make rational discussion impossible. It is the triumph of assertion over reality.

This book names names. Boris Johnson (for more on Johnson’s chronic mendacity, see here) the Daily Mail (which is world’s largest news website, because of focus on celebrities), the Canary,1 Brexit, the Daily Express, and, of course, Trump. He also mentions Read the rest of this entry

Not only Facebook

Buried in an email from Yahoo, I found

So I opted out. But how I now appear to them still includes my device IP address, so I don’t know if that really achieved much.

The email led me to the revised terms of service for Yahoo mail,and much much more (see their illustration) now part of the conglomerate formerly known as AOL-Verizon:

“Hi, we’re Oath

Oath is home to the sites and apps you know and love, such as HuffPost, Tumblr, Yahoo Mail, TechCrunch and many more.

Our stories and services connect with 1 billion people around the world every day.

Our technologies make sure you have experiences that reflect your passions, interests and goals.

So you feel like one in a billion.”

Which is exactly how I do feel right now. One billion bought and sold.

Continuing on the Oath website,

“It takes a team

Sometimes it takes teamwork to bring you the experiences that you expect and want. We may provide information to our parent company Verizon, our partners and other parties for product improvements, research and analysis, and to help them provide you with more relevant experiences and ads.”

Read the rest of this entry

NASA launches satellite ‘TESS’ in hunt for exoplanets LAUNCH ACCOMPLISHED

Reblogged from Coel’s blog, where I commented: My own best bet for intelligent life elsewhere would be aroud a red dwarf. More of them, and far longer lifetimes. Our own Sun was nearly half way through its useful lifetime before earth had multicellular organisms. More also, at PhysOrg’s Are we alone? NASA’s new planet hunder aims to find out.

Update, launch delayed

Launch successful


With the launch of NASA’s TESS satellite due this very day, this is a popular-level account of TESS and exoplanet hunting that I wrote for The Conversation. Actually this is my version, prior to their editing.

at the stars in the night sky and wondered whether they are also orbited by planets; our generation is the first to find out the answer. We now know that nearly all stars have planets around them, and as our technology improves we keep finding more. NASA’s newest satellite, TESS (the Transiting Exoplanet Survey Satellite), scheduled for launch on Monday, will extend the hunt for small, rocky planets around nearby, bright stars.

NASA’s TESS planet hunter (artist’s impression)

We want to know how big such planets are, what orbits they are in, and how they formed and evolved. Do they have atmospheres, are they clear or cloudy, and what are they made…

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When dinosaurs roamed the Western Isles

Quite a challenge, I expect, to the local Free Presbyterians.

My friend Kim Johnson commented on the strange appearance of the footprints, Steve Drury (author of the blog of which this is just an annotated repost) referred me to Paige Depolo, senior author of the paper on which Steve’s post is based, and Paige replied as follows:

When it comes to the depositional environment, the tracks were formed in a low-energy lagoon and are generally preserved today as impressions into shaley limestone. Later, additional limestone layers were laid down at the site and in-filled the impressions. Those layers form the casts that we can still observe for some of the tracks today. In some cases at this site, the cast remains while the surrounding impression which it was originally infilling has been almost completely eroded. These rocks were deposited during the Middle Jurassic. Later, likely during the Paleogene, a sill was intruded immediately below the track bearing layer and the surrounding rocks were baked. The low-level contact metamorphism of the track-bearing layers definitely makes for some interesting looking exposures!

h/t Kim and Steve, and many thanks to Paige

Cuillin Hills, Isle of Skye, Scotland, UK Cuillin Hills, Isle of Skye, Scotland, UK (credit: Wikipedia)

The Isle of Skye off the northwest coast of Scotland  is known largely as a prime tourist destination, such as Dunvegan Castle with a real clan chief (The MacLeod of MacLeod) and its Faerie Flag; Britain’s only truly challenging mountains of the Black Cuillin; and, of course, the romantic connection with the Young Pretender, Charles Edward Stuart and his escape, in drag, from the clutches of the Duke ‘Butcher’ Cumberland, hence the Skye Boat Song. Geologists know it best for its flood basalts with classic stepped topography and the exhumed guts of a massive central volcano (the Cuillin), relics of the Palaeocene-Eocene (62 to 54 Ma) North Atlantic Large Igneous Province. The spectacular Loch Coruisk, a glacial corrie drowned by the sea, exposes the deepest part of the main magma chamber. It is also the lair of Scotland’s lesser…

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