Another day in my history of evolutionary thought class

Today I’m teaching a perilous topic: the eclipse of Darwinism. There was a period of several decades where you could make an honest intellectual argument against evolution, roughly from the time it was first published (1860) to the development of population genetics (say, roughly 1920). All the arguments since then are fundamentally garbage, but before then, some smart, reputable, qualified scientists did have sincere disagreements with the theory. Also there were some terrible arguments against Darwin, but I’m focusing on just the intelligent principled arguments.

One part of Darwin’s problem is that we have to admit that there were some gigantic holes in his theory — in particular, he didn’t have a good theory of inheritance. He tried to come up with one, his theory of pangenesis, which was a combination of Lamarckian and blending inheritance. It was wrong. It was also incompatible with his theory of evolution.

What I’ll be arguing, though, is that there was a greater problem than the flaws, and that was not that people were punching holes in The Origin. Good criticism is a treasured thing in science, and critical evaluation of an idea is essential to refining and improving it. Eventually, the people ripping on Darwin’s model of inheritance were going to produce a much more solid theory.

I’m going to make the somewhat controversial claim that the people who were burying evolution were the ones who were must uncritical and gung-ho about the idea — the ones who wholeheartedly embraced Darwinism, warts and all, and extended it in unproductive ways. That means that today I’m going to talk about two people who were disastrous to Darwinism while simultaneously acting as prominent cheerleaders for it.

So yeah, I’m going to rake a couple of historical figures over the coals, specifically Haeckel and Herbert Spencer. We’re going to discuss the positive claims of a couple of prominent 19th century boosters of evolution, and I’m going to make the case that their excesses were a contributing factor to the eclipse. Worse, their version of evolution was popular and persuasive and despite their rejection as good science, we’re still dealing with people who think recapitulation and “survival of the fittest” are great shorthand summaries of the principle of evolution.

The reading I’ve assigned for the week is this article, The Beauty and Violence of Ernst Haeckel’s Illustrations, which is an extremely harsh condemnation of Haeckel’s views. “Haeckel’s visions of nature were less objective depictions of life and more projected notions about the proper ‘order’ of nature,” it says. I’m telling the students to read Haeckel critically and also to regard this article skeptically. I’m hoping maybe they’ll be provoked into good, vigorous debate in the classroom, and that they’ll put together some thoughtful essays on the topic.

Today I’m doing a “fool’s experiment” in the classroom

Fridays are the worst, from a teacher’s perspective, and Mondays are great. Students start out the week full of enthusiasm and slowly deflate, so today I’ve only got 50% attendance…and that’s typical. I try to pack Mondays with all the deep information, while on Fridays I try to do something different.

We’ve been talking about Darwin this week. I’ve given them an in-class exercise to browse through the Darwin project and begin to put together a short essay. Here are their instructions.

In your next essay, you’re going to be a real historian: I want you to read a few samples of primary historical references from Charles Darwin, and interpret and explain what he is writing about.

The Darwin Correspondence Project (https://www.darwinproject.ac.uk/) is a massive archive of letters to and from Charles Darwin, containing about 15,000 documents that have all been indexed and made publicly available. I want you to dive into this pile of letters, pluck out a few, and read them carefully. You may have to do additional research to figure out who these long dead people were, but the Darwin Project has actually done a lot of that work for you.

Write a 750 word essay that explains the context and meaning of the letters you choose. Unlike most scientific writing, this kind of essay encourages quoting your source — but don’t use up more than 250 words in direct quotes.

You get to choose the topic of the letters. Some might contain heavy scientific arguments, others might be friendly chit-chat, some are questions about that flower you were supposed to mail to me. They’re all good and interesting! Peek into the mind of a famous scientist, and you’ll find both deep revelations and mundane conversation.

In class: before you go, summarize to the group what you intend to write about, or tell us something interesting that you found.

I’m in class, working in parallel with them, and occasionally interrupting to get an idea of what they’re focusing on. I was most interested in Darwin’s “fool experiments“. These were experiments where you figured that it would never work, or that the answer would be obvious, but you go ahead and do the experiment anyways.

‘I love fools’ experiments. I am always making them’, was one of the most interesting things the zoologist E. Ray Lankester ever heard Darwin say. ‘A great deal might be written as comment on that statement’, Lankester later recorded, but he limited himself to stating that ‘the thoughts which it suggests may be summed up by the proposition that even a wise experiment when made by a fool generally leads to a false conclusion, but that fools’ experiments conducted by a genius often prove to be leaps through the dark into great discoveries.’

That’s a really good idea. I should go do a fool’s experiment this afternoon, maybe I’ll be surprised.

My students are right now digging into Darwin’s religious beliefs, his love life, his speculations about the age of the earth, and are going to give me the details next week. This should be fun.

Testa di cazzo!

To some people, today is Columbus Day. Those people have a cultish dedication to believing that a rapist, a thief, a slaver, and an oppressor was a hero — I guess nowadays we can believe there will be subset of the citizenry who ignore the facts to invent a cherished symbol. To be fair, here’s a bit from the Friends of Italian-Americans.

Even by today’s impossible utopian standards, Columbus was without a doubt the greatest hero of the Fifteenth and Sixteenth Centuries. He was a capitalist in the age of Empires, and what he did began the downfall of imperialism. He was a scientist in the age of superstition. He was a civil rights activist in the age of oppression. And he was a pacifist in the age of war-mongering. Thus, Columbus was an icon and a paragon.

For a quick dismissal of their claims, consider that they condemn Howard Zinn’s A People’s History of the United States by citing a PragerU video.

I think this is a better summary of Columbus’s character.

Italian-American Trade Unionists of America Condemn Columbus on Columbus Day The Italian-American Trade Unionists of America (IATUOA) has once again reaffirmed its condemnation of Christopher Columbus on Columbus Day.
“We only mention the son of a bitch’s name once a year and it’s when we announce that he’s a son of a bitch on his name day,” the IATUOA Executive Committee announced from a dark, smoke-filled room in the Italian-American Club of Shamokin, PA.
The IATUOA, founded on the principles of cultural solidarity through bargaining, mutual aid, shared dining experiences, and anti-imperialism, believes Columbus represents the antithesis of these core values. Based on his writing and contemporary accounts, Columbus was a greedy, self-indulgent strunz, a jerk-off that gleefully engaged in the enslavement and genocide of indigenous people for personal gain and fame.
Further, this fucking guy, supposedly Genoese, rarely spoke or wrote in Ligurian or any Italic language. What kind of “Italian” does that?
Italian-Americans deserve recognition and a holiday in the United States, but also deserve a figure worthy of their name. “If you’re gonna name the fuckin’ day Columbus Day, you might as well go-all in and make the fucking holiday Columbus/Mussolini Day to piss on a few more graves,” the IATOUA Executive Committee further scoffed.

Missed opportunity

Today is the anniversary of that day when people show paintings of the surrender at Appomattox Courthouse, and I ask, “General Grant, why are you shaking hands with that piece of shit?” I also wonder if American generosity to bloody-handed traitors might have something to do with our current habit of appeasement to Nazis, anti-Semites, and insurrectionists.

The surrender, 9 April 1865

Wow, now I really want to read this book!

Does anyone have a copy of the 1658 edition?

The Crafty Whore:
or,
The mistery and iniquity of
BAWDY HOUSES
Laid open,
the dialogue between two SUBTLE BAWDS,
wherein, as in a mirrour, our
CITY-CURTESANS
may face their sould-destroying Are, and Crafty
devices, whereby they Insnare and beguile
Youth, pourtraled to the life,
By the PENSELL of one of their late, (but now
penitent) CAPTIVES, for the benefit of
all, but especially the younger sort.
Whereunto is added
DEHORTATIONS from LUST
Drawn from the
SAD and LAMENTABLE
Consequences it produceth.
Mastodon

We need to bring back that style of title/title page for all of our texts. It got me hooked from the first line.

Google Maps for the Roman Empire

The last time I was in London, I was so tempted by all the ads for $30 flights to Rome — I could flit off for a weekend in Italy! I could also make a day trip by train to Edinburgh, which was a bit more expensive but a pleasant way to travel anyway. Let’s do a fantasy vacation and see what I could do. Here’s the Edinburgh trip:

What? The closest you can get me is to York, which the British manage to spell funny, and it’s going to take nine days? By donkey? British rail sure has gone downhill.

What about that weekend trip to Italy, instead? Cheapest route, please.

No direct flights available? I have to take a couple of sea cruises, another butt-busting ride on a donkey, and it’s going to take 37 days? I haven’t the slightest idea what the conversion rate for denarii is, so I’m not going to guess what it costs. Probably more than $30.

You’ve probably figured out that I wasn’t using Google Maps, but this cool webpage called Orbis, which uses a historical database to calculate routes and travel times to and from various destinations in 200CE. Apparently, there was no such thing as taking a three day vacation in a different country back then, when you either had to walk, ride a donkey, or pay a lot of money for a carriage.

I could see how fantasy novelists and fantasy gamers, as well as historians, could use this to get some perspective on how much work was required to move around in the ancient world.

I never did like those genders, anyhow

When I was learning German, I struggled with the whole concept of gendered words — you had to use different articles with different nouns, and adjective endings were all over the place. One of the nice things about English is that we’ve jettisoned all that nonsense, but our language used to have them.

Maybe we should continue the trend and get rid of the gendered pronouns? They just get in the way and flag people with often inappropriate assumptions. All the people who complain about having to respect pronouns should appreciate that since it makes everything so simple and means they won’t have to worry about “compelled speech” anymore.

It’s a property of English, learn to respect it! Or go learn Spanish.*

*(We Americans might all have to learn Spanish anyway, or at least some hybrid of Spanish and English**)

**(Which I would hope would ditch the gendered nouns, too.)

Those darn immigrants

Go back where you come from! You violate our traditions and are trying to replace us!

I guess that’s a familiar complaint. Britons were complaining about all those immigrants from the European mainland who were waltzing in, smug as you please, after the fall of Rome, and I presume they were taking all the jerbs. Now science demonstrates the takeover.

In the eighth century C.E., an English monk named Bede wrote the history of the island, saying Rome’s decline in about 400 C.E. opened the way to an invasion from the east. Angle, Saxon, and Jute tribes from what is today northwestern Germany and southern Denmark “came over into the island, and they began to increase so much, that they became terrible to the natives.”

But in the later 20th century, many archaeologists suspected Bede, writing centuries later, had exaggerated the invasion’s scale. Instead, they envisioned a small migration of a warrior elite, who imposed their imported culture on the existing population. Now, a sweeping genomic study, published this week in Nature, suggests Bede may have been at least partly right. New DNA samples from 494 people who died in England between 400 and 900 C.E. show they derived more than three-quarters of their ancestry from Northern Europe.

It was the Angles and the Saxons!

“You can’t deny there was a big shift in material culture—Roman Britain looks very different from the Anglo-Saxon period 200 years later,” Hills says. In spite of that, “Most archaeologists have been critical of the idea of migration,” rejecting it as an overly simplistic explanation for cultural change.

But the new DNA analysis revives it. Together with previously published DNA, samples from more than 20 cemeteries along England’s eastern coast suggest a rapid, large-scale migration from Northern Europe, beginning by 450 C.E. at the latest. “Some Anglo-Saxon sites look almost 100% continental European,” says co-author Joscha Gretzinger, a geneticist at the Max Planck Institute for Evolutionary Anthropology. “The only explanation is a large amount of people coming in from the North Sea zone.”

Anglo-Saxons go home! Pack up your things and move back to Germany. Or France. Or Poland. And take your foreign ways and your strange foods and your filthy habits with you.<

Except…here comes the kicker.

Traces of western British and Irish ancestry in people buried on the continent suggest a reverse migration, too, with migrants’ descendants moving back after generations in Great Britain. The results undercut the idea of Great Britain as an isolated island, upset only occasionally by invasions. “Actually, the North Sea was a highway, where people were coming and going,” Hills says. “Maybe mobility is a more normal human state than we think.

So, like, maybe we should just get used to populations changing over time?

Hooke doesn’t get enough respect

This is an impressive microscope. It doesn’t look like much, but this is the kind of instrument Leeuwenhoek used to make his observations, back in the 17th and early 18th century. I did not know until now that it was a mystery how he could magnify specimens 270 times with a simple lens — we didn’t know exactly how he constructed the lens, and he wouldn’t tell anyone. It was his secret, which is not a proper scientific attitude, but OK, it was his key to fame.

Until now, that is. The secret of Leeuwenhoek’s lenses has been cracked! It turns out he borrowed a technique of Robert Hooke’s and improved on it.

But on his most powerful lens, neutron tomography revealed that Van Leeuwenhoek used another technique entirely. It was almost perfectly spherical and completely smooth, without the sharp rim inevitably created by a traditional grinding cup. Even more tellingly, the lens retained the faint remnants of a snapped stem, concealed by the brass plates since the day Van Leeuwenhoek had placed it there.

The stem is a smoking gun. It’s the unavoidable result of forming a lens by melting a thread of glass until a bead forms on its end and then snapping it off. In other words, to make his greatest lens, Van Leeuwenhoek copied Hooke’s simple recipe from the book that likely inspired him. Cocquyt believes this may explain why he was so circumspect when Hooke asked about his methods; he wanted to avoid giving credit to Hooke himself.

Published in Science Advances last year, Cocquyt’s discovery that Van Leeuwenhoek used a well-known technique reveals a deeper truth about the state of microscopy in the 17th century. It suggests that for all the crafting genius required to make his tiny, super-powered lens, Van Leeuwenhoek’s greatest insight may have been that there was something new to see by making one.

I mean, everyone was copying Robert Hooke in the 17th century and then hiding the fact. Hooke was a real genius, and it makes me wonder why no one wanted to credit him for anything. Apparently, he was an unpleasant character, vain and jealous, and that has damaged his legacy. The lesson: be courteous and nice with your peers!

Men never change

I suppose a woman could have carved this stone found along Hadrian’s wall, and from the 2nd century CE, but somehow I doubt it.

The stone is fairly small, measuring 40 cm wide by 15 cm tall (15 inches by 6 inches). Experts in Roman epigraphy recognized the lettering as a mangled version of Secundinus cacator, which translates into (ahem) “Secundinus, the shitter.” The penis image merely added insult to injury—a clever subversion of the traditional interpretation of a phallus as a positive symbol of fertility. The Vindolanda site now has 13 phallic carvings, more than have been discovered at any other dig site along Hadrian’s Wall.

The last laugh is on whoever carved it, because we remember Secundinus’s name and not his.