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hey kids did you know that computers didn't used to automatically connect to the internet. it used to make this screaming noise. we should have listened.
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sick of streaming platforms' blatant disrespect towards the sanctity of the "watching end-credits while collecting your thoughts" ritual
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the idealized version of my tomorrow self will fix this
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For the Reverse Unpopular Opinion meme, Lamarckism!
(This is an excellent ask.)
Lamarck got done a bit dirty by the textbooks, as one so often is. He's billed as the guy who articulated an evolutionary theory of inherited characteristics, inevitably set up as an opponent made of straw for Darwin to knock down. The example I recall my own teachers using in grade school was the idea that a giraffe would strain to reach the highest branches of a tree, and as a result, its offspring would be born with slightly longer necks. Ha-ha-ha, isn't-that-silly, isn't natural selection so much more sensible?
But the thing is, this wasn't his idea, not even close. People have been running with ideas like that since antiquity at least. What Lamarck did was to systematize that claim, in the context of a wider and much more interesting theory.
Lamarck was born in to an era where natural philosophy was slowly giving way to Baconian science in the modern sense- that strange, eighteenth century, the one caught in an uneasy tension between Newton the alchemist and Darwin the naturalist. This is the century of Ben Franklin and his key and his kite, and the awed discovery that this "electricity" business was somehow involved in living organisms- the discovery that paved the way for Shelley's Frankenstein. This was the era when alchemy was fighting its last desperate battles with chemistry, when the division between 'organic' and 'inorganic' chemistry was fundamental- the first synthesis of organic molecules in the laboratory wouldn't occur until 1828, the year before Lamarck's death. We do not have atoms, not yet. Mendel and genetics are still more than a century away; we won't even have cells for another half-century or more.
Lamarck stepped in to that strange moment. I don't think he was a bold revolutionary, really, or had much interest in being one. He was profoundly interested in the structure and relationships between species, and when we're not using him as a punching bag in grade schools, some people manage to remember that he was a banging good taxonomist, and made real progress in the classification of invertebrates. He started life believing in the total immutability of species, but later was convinced that evolution really was occurring- not because somebody taught him in the classroom, or because it was the accepted wisdom of the time, but through deep, continued exposure to nature itself. He was convinced by the evidence of his senses.
(Mostly snails.)
His problem was complexity. When he'd been working as a botanist, he had this neat little idea to order organisms by complexity, starting with the grubbiest, saddest little seaweed or fern, up through lovely flowering plants. This was not an evolutionary theory, just an organizing structure; essentially, just a sort of museum display. But when he was asked to do the same thing with invertebrates, he realized rather quickly that this task had problems. A linear sorting from simple to complex seemed embarrassingly artificial, because it elided too many different kinds of complexity, and ignored obvious similarities and shared characteristics.
When he went back to the drawing board, he found better organizing schema; you'd recognize them today. There were hierarchies, nested identities. Simple forms with only basic, shared anatomical patterns, each functioning as a sort of superset implying more complex groups within it, defined additively by the addition of new organs or structures in the body. He'd made a taxonomic tree.
Even more shockingly, he realized something deep and true in what he was looking at: this wasn't just an abstract mapping of invertebrates to a conceptual diagram of their structures. This was a map in time. Complexities in invertebrates- in all organisms!- must have been accumulating in simpler forms, such that the most complicated organisms were also the youngest.
This is the essential revolution of Lamarckian evolution, not the inherited characteristics thing. His theory, in its full accounting, is actually quite elaborate. Summarized slightly less badly than it is in your grade school classroom (though still pretty badly, I'm by no means an expert on this stuff), it looks something like this:
As we all know, animals and plants are sometimes generated ex nihilo in different places, like maggots spontaneously appearing in middens. However, the spontaneous generation of life is much weaker than we have supposed; it can only result in the most basic, simple organisms (e.g. polyps). All the dizzying complexity we see in the world around us must have happened iteratively, in a sequence over time that operated on inheritance between one organism and its descendants.
As we all know, living things are dynamic in relation to inorganic matter, and this vital power includes an occasional tendency to gain in complexity. However, this tendency is not a spiritual or supernatural effect; it's a function of natural, material processes working over time. Probably this has something to do with fluids such as 'heat' and 'electricity' which are known to concentrate in living tissues. When features appear spontaneously in an organism, that should be understood as an intrinsic propensity of the organism itself, rather than being caused by the environment or by a divine entity. There is a specific, definite, and historically contingent pattern in which new features can appear in existing organisms.
As we all know, using different tissue groups more causes them to be expressed more in your descendants, and disuse weakens them in the same way. However, this is not a major feature in the development of new organic complexity, since it could only move 'laterally' on the complexity ladder and will never create new organs or tissue groups. At most, you might see lineages move from ape-like to human-like or vice versa, or between different types of birds or something; it's an adaptive tendency that helps organisms thrive in different environments. In species will less sophisticated neural systems, this will be even less flexible, because they can't supplement it with willpower the way that complex vertebrates can.
Lamarck isn't messing around here; this is a real, genuinely interesting model of the world. And what I think I'm prepared to argue here is that Lamarck's biggest errors aren't his. He has his own blind spots and mistakes, certainly. The focus on complexity is... fraught, at a minimum. But again and again, what really bites him in the ass is just his failure to break with his inherited assumptions enough. The parts of this that are actually Lamarckian, that is, are the ideas of Lamarck, are very clearly groping towards a recognizable kind of proto-evolutionary theory in a way that we recognize.
What makes Lamarck a punching bag in grade-school classes today is the same thing that made it interesting; it's that it was the best and most scientific explanation of biological complexity available at the time. It was the theory to beat, the one that had edged out all the other competitors and emerged as the most useful framework of the era. And precisely none of that complexity makes it in to our textbooks; they use "Lamarckianism" to refer to arguments made by freaking Aristotle, and which Lamarck himself accepted but de-emphasized as subordinate processes. What's even worse, Darwin didn't reject this mechanism either. Darwin was totally on board with the idea as a possible adaptive tendency; he just didn't particularly need it for his theory.
Lamarck had nothing. Not genetics, not chromosomes, not cells, not atomic theory. Geology was a hot new thing! Heat was a liquid! What Lamarck had was snails. And on the basis of snails, Lamarck deduced a profound theory of complexity emerging over time, of the biosphere as a(n al)chemical process rather than a divine pageant, of gradual adaptation punctuated by rapid innovation. That's incredible.
There's a lot of falsehood in the Lamarckian theory of evolution, and it never managed to entirely throw off the sloppy magical thinking of what came before. But his achievement was to approach biology and taxonomy with a profound scientific curiosity, and to improve and clarify our thinking about those subjects so dramatically that a theory of biology could finally, triumphantly, be proven wrong. Lamarck is falsifiable. That is a victory of the highest order.
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Marijke van Welzen creates wearable art using techniques she developed over the years. Not afraid of experimentation or a challenge, Marijke produces unique art garments that explore a theme or tell a story. She has a BA in Textile Art and in English. She has worked as a middle school teacher for 40 years.
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leitmotifs never get old to me like holy shit dude there’s this melody that corresponds to this one guy and if you hear the melody it means the guy is there. holy shit. and sometimes it refers to ideas too not just guys. has anyone heard about this
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【ZJ Story -The Graveyard of the Dragons- Blouse】 【New Color: Silver】
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Reblog to open a rail line from your blog to the person you reblogged this from
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for april fools we’re deleting this entire site sayonara you weeaboo shits
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I would like to note that contrary to popular belief, tuxedo cats are not little businessmen!
tuxedo is formal party attire, if you wore one at a business function, you would be inappropriately dressed!
tuxedo cats are, instead, lil fancy guys, darling socialites, even
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A murder mystery film set in a medieval village. After an outbreak of plague, the villagers make the decision to shut their borders so as to protect the disease from spreading (see the real life case of the village of Eyam). As the disease decimates the population, however, some bodies start showing up that very obviously were not killed by plague.
Since nobody has been in or out since the outbreak began, the killer has to be somebody in the local community.
The village constable (who is essentially just Some Guy, because being a medieval constable was a bit like getting jury duty, if jury duty gave you the power to arrest people) struggles to investigate the crime without exposing himself to the disease, and to maintain order as the plague-stricken villagers begin to turn on each other.
The killer strikes repeatedly, seemingly taking advantage of the empty streets and forced isolation to strike without witnesses. As with any other murder mystery, the audience is given exactly the same information to solve the crime as the detective.
Except, that is, whenever another character is killed, at which point we cut to the present day where said character's remains are being carefully examined by a team of modern archaeologists and historians who are also trying to figure out why so many of the people in this plague-pit died from blunt force trauma.
The archaeologists and historians, btw, are real experts who haven't been allowed to read the script. The filmmakers just give them a model of the victim's remains, along with some artefacts, and they have to treat it like a real case and give their real opinion on how they think this person died.
We then cut back to the past, where the constable is trying to do the same thing. Unlike the archaeologists, he doesn't have the advantage of modern tech and medical knowledge to examine the body, but he does have a more complete crime scene (since certain clues obviously wouldn't survive to be dug up in the modern day) and personal knowledge from having probably known the victim.
The audience then gets a more complete picture than either group, and an insight into both the strengths and limits of modern archaeology, explaining what we can and can't learn from studying a person's remains.
At the end of the film, after the killer is revealed and the main plot is resolved, we then get to see the archaeologists get shown the actual scenes where their 'victims' were killed, so they can see how well their conclusions match up with what 'really' happened.
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