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#cultural evolution – @tropylium on Tumblr
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i do love the color of the sky

@tropylium / tropylium.tumblr.com

seeker of truth, beauty and peace
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funny how pushing "lots of people are massively incompetent, it's a miracle our entire society hasn't collapsed yet" far enough actually really yields "actually so many people are massively incompetent that clearly it actually mostly doesn't matter at all for keeping society rolling". institutional antifragility is real

think the thing here is that cultural evolution is evolution, and as such is only required to deliver results, vs. has no obligation to produce societies where it would be apparent to us as their members what really is and isn't important for keeping the lights on the show rolling. even if we do in fact want to at least try that (and will probably be often incompetent at it)

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argumate

"they want to indoctrinate your kids!" is the universal rallying cry because of course they do, just like you want to indoctrinate their kids.

every ideology has to be self-reinforcing rather than self-refuting and that naturally leads to the belief that this ideology is more correct than other ideologies (otherwise you would switch) and it is better for children to learn correct things than incorrect things (unless you hate kids?) therefore this ideology should be taught to kids (a polite way of saying "indoctrinated").

one could imagine an Ideology of Indifference that was uninterested in perpetuating itself and did not make any claims as to its own correctness or usefulness or relevance but obviously such an ideology would not spread far nor last long!

and in practice even neutral hobbies like golf or knitting inevitably attract advocacy efforts to promote and evangelise and yes, even indoctrinate the kids as to how knitting is cool and golf is a real sport or whatever it is.

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tropylium

Mostly correct, but there's probably room for distinguishing "teaching" and "indoctrinating" an ideology — for a first pass, deriving doctrine from more basic assumptions, versus demanding orthodoxy without further explanation (this makes for a spectrum of course).

though then that's going to be often rhetorically unpopular in that it does not give a division where all opposing ideologies are due to Indoctrination; not even a division where any particular ideology is necessarily on just one side.

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raginrayguns

so I guess the knife works because whether a cut is made depends upon pressure, not force, and

pressure = force / area

so the narrower you make the blade, the more pressure you apply with the same force.

this seems pretty clear to be looking at a knife. But I honestly feel like I never would’ve thought of a knife. I would’ve had to see other sharp things first

and even then, would I make the jump from “I can find something sharp” to “I can make something sharp by sharpening it”?

Unless there’s some weird hypothetical world, i feel like you’d be able to generalize from nails (or if in the hypothetical you’re not human but still from earth) claws.

Probably you’d get to pointy stick before knife. first naturally pointy, then break it in a way that makes it pointy, then maybe some way of sharpening it to be pointy, then finding someway to get a line of shapness instead of a point.

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tropylium

For the vast majority of human prehistory (ca. 3 million BCE — 8000 BCE), knifes have indeed not been made by sharpening anything, they've been made by knapping rocks to leave a natural sharp edge. The best option is obsidian, as already known to Homo erectus. Then again, sharpening sticks is obviously an older technology still — known even to chimpanzees. OP's question is moot in that probably no human has ever needed to invent the general concept of sharpening, which is knowledge that predates our species.

Of course you still can't exactly make a wooden knife worth a damn no matter how sharp you hone it. Getting from any random sharp stick or rock to specifically a knife requires first developing a whole variety of handaxes. I would wager also bone/horn tools (good for things like scrapers and awls; also, shell razors), though unfortunately as organic materials these do not fossilize well enough to be clearly attested in the archeological record for us to be certain about this. Still, these (1) can be created by breaking but also (2) can be easily honed with stone, much more so than stones themselves.

Honed stone tools though are indeed an exclusively modern human technology, apparently first invented in Australia ca. 44000 BCE and independently in Japan ca. 38000 BCE (both fairly marginal places — maybe invented by necessity after being left outside of Pleistocene obsidian trade networks?). They do not spread worldwide until the Neolithic, which is indeed late enough to overlap with the knowledge of the working of natural copper and meteoric iron. Looking up some details of this on Wikipedia I even stumbled on this interesting quote: "Knowledge of the use of copper was far more widespread than the metal itself. The European Battle Axe culture [the first Indo-Europeans of Fennoscandia, 2800–2300 BCE] used stone axes modeled on copper axes, even with moulding carved in the stone."

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tanadrin

@plain-dealing-villain There are few human cultural universals, but as you might expect for a species that uses language heavily, one of them is social status being accorded to particularly skillful users of language: poets, composers of songs, witty jokesters, eloquent speakers, and so forth. And since verbal intelligence is correlated with other kinds of intelligence, that means even just within human groups and competing with other humans, intelligence has been at least somewhat adaptive for as long as we’ve had language–when we acquired language is debated, but it’s assumed we definitely had it around the time of the advent of behavioral modernity 50,000 years ago.

The human brain probably evolved its large size in the first place due to our highly social environment, resulting in an increase in the usefulness of improving cooperation and modeling the behavior of other humans–which in turn resulted in more cooperation and more complex behavior–in a feedback loop that ballooned the 640 ccs of Homo habilis’s skull to modern humans’ 1260 cc. You know, evolution! A manifestation of evolutionary pressure in the direction of increasing intelligence! The thing that notably sets the hominid lineage apart from other primates starting millions of years ago.

“Intelligence is more adaptive in Europe bc the weather is worse” or something, while a bad argument and one I would happily challenge, would be more comprehensible to me as a proposition than “intelligence is not particularly adaptive anywhere before a thousand years ago” when intelligence is one of the reasons humans spread across the entire globe and developed complex societies, tool use, and language thousands and thousands of years ago. Especially when it’s a feature that’s been evolutionarily notable in our lineage since it separated from our closest ancestors!

Almost none of this is correct. “Social status being accorded to particularly skillful users of language" was a strictly upper class thing, top 1% of the pyramid, for most of history. If you’re a farmer, which until at least 1000 AD 95% of the world was - and for a while afterward, it’s debatable exactly when, but it was after 1000 AD - you don’t have time or energy to reward that meaningfully.

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tropylium

Agriculture comprises like 3% of the history of anatomically modern humans (still only 20% even if we go with 50ka as a “behavioral modernity” cut-off), while folk poetry and/or oral tradition are known among all hunter-gatherer groups. Agriculture and civilization definitely impose selection among extant variation, but neither has been around for a long enough time to form that much selection pressure for the evolution of new traits, other than immediately strongly adaptive ones like lactase persistence.

Intelligence however does not need to aid in anything like making up better poetry or the like that would provide social status specifically, since it already aids in being better at memorizing tradition, i.e. giving better access to human technologies in more general.

On the settlement of high latitudes: you absolutely need a certain level of intelligence for hominids to live in very cold climates (cf. H. erectus populating most of the tropical and temperate Old World but never more than that) but probably again more by gradual evolution of technology. A handful of smart early humans randomly dropped into Pleistocene Siberia will still freeze/starve to death in the winter before they figure out how to sew the kind of highly insulating fur clothing used by native peoples of the (sub)arctic, if they don’t have any pre-existing knowledge of this tech, as honed over dozens of generations. And on the other hand, humans who are already capable of gradually developing elaborate material cultures in e.g. stonesmithing spear tips / arrowheads probably don’t need to be any more intelligent to eventually develop also other material cultures. I’d think any possible improved selection for intelligence enters the picture instead via competition between different human groups — i.e. in the fact that in harsh climates (with fewer backup food sources available, etc.) the penalties for failing to compete are worse.

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Slightly more meta: social darwinism can also make the mistake of conflating “surviving” and “living with comforts”. Even if some two-child family ends up homeless, they still would be, very unambiguously, more reproductively fit (“surviving better”) than a childless billionaire. Evolution is only ever on the side of your genes, not your personal wellbeing. Applies mutatis mutandis to any kind of social-darwinism-of-ideas too.

Any kind of ““real social darwinism””, I feel, would not be a prescriptive policy, but simply the observation that we all still are governed by the law of natural selection (and will always be, in a universe where time is linear).

What one wants to do with this observations depends on what are things we actually want to achieve. Whenever our goals happen to align with evolution (“want food”, “want a future for my children” etc.) then fine, not a problem with evolution per se here, it does not need our help to keep going. It’s when our goals differ from what evolution is currently up to that something would have to be done.

Moreover any solution always would have to look like either “change our goals to align more with evolution” (the fatalist approach) or the “change the incentives/material conditions so that evolution will optimize more for our goals” (the social engineering approach). There are no possible ways for sustainably operating “against evolution”: whatever is sustained is, ipso facto, “favored by evolution”.

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tropylium

unpopular fact: there is no meaningful cutoff between “let [poor] people have nice things” and “conspicuous consumption” where “nice things” would cease to mean real needs and start meaning status goods

the core reason for this is that humans are social being and status IS a need

including also higher up in social hierarchy; lots of purposes require extensive connections that would be much harder to form without signalling your social status

But why do we need a social hierarchy? What is it good for (except fulfilling our animalistic needs, for example being at the top meant more successful in reproducing)

Perhaps “we” could indeed use fewer hierarchies, but in any case currently our societies do have them, and they create needs for people for navigating them.

Biological needs like reproductive success are also still needs of course, and you may have answered your own question there already if you think they can be fulfilled by establishing oneself in some social hierarchy.

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Also since it was mentioned in something that I was just listening to I gotta say while social darwinistic “winners should win and losers should lose“ is a part of this far-right movement I think I put more of it on a sort of aggressive entitlement, people have aggressive conceptions on what they deserve and have the right to do and to hell with anyone else in their way.

I mean you could say that a real social darwinist would be free trade, now while that may be assigning a but too much coherence but it’s not nothing

Yeah the thing I was always confused by was how the right seems to fuse this very paternalistic-authoritarian tendency, this desire for a strongman leader who can handle everything, which feels neotenous and Freudian, with this other ethic of self-sufficiency and consequences for actions that seems totally at odds with that.

I guess to some extent those just reflect distinct traditions, like the former is more fascistic and the latter is more generically conservative, but the two don’t really seem at odds in the same way that the equivalent liberalism vs. authoritarianism split is on the left.

But there’s I guess a certain logic to the idea that some people’s ressentiment naturally flows into a social-darwinist idiom even if it’s only a superficial gloss; what I’m left wondering then is why that’s the go-to idiom, when it’s otherwise at odds. Maybe that’s just the moral paradigm you drift toward if you fetishize strength-as-an-idea?

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tropylium

This problem only exists if you think of “social darwinism” as a particular life strategy rather than the general notion that natural selection applies to cultures.

Conservatives do not favor strongmannism because of a priori philosophical commitments, as much as they favor it by the heuristic of “it has been prevalent in the past, ergo it must have been beneficial”, i.e. a kind of an extended Chesterton’s fence argument. If there’s a mistake here, I would think it’s probably primarily a group-selectionist one (strongmannism is clearly beneficial to the strongman himself, which alone should suffice for it to come up repeatedly). Maybe also a decent part of not properly recognizing that history is written by the victors?

(For that matter, note that also the inverse “it’s not common therefore it’s probably maladaptive” is in fact a valid inference too, and most applications go instead wrong in the premise. All sorts of things maligned by conservatives as “modern degeneracies” have existed among humans all along…)

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On Modernity and Fuckups

Someone points out that my additions on the history of white rice do not trump the core point of the OP, which is that European meddling did ultimately lead to a beriberi epidemic in Asia. Yes, this is broadly correct. If we want to move on from establishing the historical facts to assigning guilt though, I would also point out that people within the western scientific-technological tradition are also responsible for most of the efforts to fix this — identifying that beriberi is vitamin B1 deficiency, identifying rice bran as rich in B1, putting two and two together and concluding that it was the specifically the introduction of cheap white rice that created the beriberi epidemic in the first place, researching ways to extract B1, introducing B1 supplements on the market, providing these whereever the need is the most urgent, running campaigns to educate people on nutritional needs and the importance of some variability in diets.

(to be sure, I have no idea how many of the people involved in these discoveries were ethnically Europeans, but I claim with confidence that all of them were modernized, i.e. roughly culturally western — native Asian scientific and coordinated social welfare traditions were much behind the West, and would not have worked out any other kind of a solution than, perhaps, complete rollback by banning white rice. You could moreover argue that “modern” should be distinguished here from “western”, but then you’d also need to notice that this “European” meddling was exclusively the work of the international heralds of modernity, and average European peasantfolk from Moravia or Savonia or Ohio had nothing to do with any of it.)

…anyway, with the net result being, I would argue, ultimately positive: the world now has both white rice as an easily available commodity, plus the knowledge of its associated nutritional risks + how to address them. If none of this process had happened, there would have still been people in Asia suffering in poverty, just due to hunger rather than beriberi. Without “European meddling”, this could have continued to be the case for centuries still — unlike the beriberi problem, which is both fixable and actively being fixed.

This general type of a thing has however happened repeatedly with modernization: “we” (= entrepreneurs with access to modern science and technology) invent some nifty tool or procedure or chemical, and a few decades later “we” (= medical scientists and public health officials) figure out that actually it has significant harmful consequences to “us” (= usually, poorer people in particular) and ought to be rolled back in part or in whole.

A few of the more severe cases you have likely heard of:

  • DDT, which is a great pesticide, but also causes birth defects
  • freons, which enable cheap powerful refrigeration, but also fuck up the ozone layer
  • nuclear power, a highly effective source of energy, but if done with poor security, leads to meltdowns that leave hundreds of km² inhabitable and the ground zero site lethal for centuries
  • bisphenol A and friends, which are convenient plastic additives, but also cause poor sperm quality, threatening reproductive viability
  • tobacco, which is a fun pastime, but also causes addiction and respiratory system cancers

(in the last case we have an example of an innovation that originated somewhere else, but was then aggressively commodified and marketed by modern capitalism)

On one hand, these fuckups are more or less a package deal with the numerous boons of modernization (advanced medicine, improved crops, industrial fertilizers, telecommunications, metallurgy, electricity, robotics…) There is so far no evidence that humanity would be able to put together such thing as “modernity, except it does not ever invent a DDT”. Every so often we only learn from experience that something was a bad idea. By now we’ve invented concepts like tail risk and black swans and unknown unknowns to be a bit more prepared, but they too still confirm the point: we cannot anticipate all the side effects of technological development.

On the other hand, it‘s not like we can decide to stop, either. Knowledge cannot be put back into Pandora’s box, short of apocalyptic mass destruction of all modern societies, or perhaps "merely” dystopian totalitarianist lockdown. Never mind even that these would be a cure much worse than the disease: if even just one nation’s industrial and scientific base survives in some form, there would be rebuilding and rediscovery, perhaps including recapitulation of old mistakes. — Also, while all of this is going on, who’s keeping an eye on the containment of e.g. all the highly dangerous nuclear waste we have lying around? We really don’t want that shit just getting loose in the environment. The only generally applicable cure for modernity’s past mistakes is improved and better-regulated modernity. 

My primary concern about modernity is therefore not the gradual learning-from-mistakes. There are people who lose out, but also many more people whose lives end up ultimately better off. It’s the whole lock-in aspect of it, combined with the possibility that some day we commit a mistake too big to fix. Perhaps sooner than we think: if we really botch up the response to climate change, the death toll could be astronomical (there are by now billions of people living in vulnerable coastal areas). At that point it would be a little gauche to reply “but we did get to ride on cars for a century or so, isn’t that still something”. I believe it is a bit early for wholesale demonization of modernity, but that still an option that remains on the table. It probably always will, too. Today climate change, tomorrow the risk of space elevators falling out of orbit, the day after tomorrow, I dunno, Earth’s orbit instability due to mass/momentum increases from asteroid mining?

In a sense this isn’t even about modernity as much as cultural evolution. “Natural” inventions like language and agriculture have had quite major negative side effects as well (just ask any mammoth, any Neanderthalian, any hunter-gatherer), just on a slower timescale. We’ve been on this ride for a long time, and modernization is just one particularly steep hill along the way.

And getting back to the question of who to blame for all of this… why should we presume anyone is in charge of history at all? (Other than the general human urge to look for simple targets for blame.) If we were to restrict ourselves to assigning blame individually, cases like beriberi break apart into dozens, perhaps hundreds of people, none of whom can be considered the definitive broken link in the chain (and all of whom are long dead, also). Designing rice milling machines surely is not a crime in itself, neither is being being willing to pay for easily storeable rice, nor is trying to make a living with shipping rice, nor is following and supporting a new culinary fashion. And so no one ever manages to make specific accusations with these things — just vague collective guilt pointed at unimpeachable egregores like “Europeans” or “imperialism” or “capitalism” or “modernity”.

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it’s so common for “being straight & cis is normal” people to get hung up on what’s most evolutionarily “efficient” like they come at you with “if Men and Women didn’t have sex and continue the species we wouldn’t have made it this far so it doesn’t make sense to be anything but Straight and Cis,” and I really want to ask them when humans have Ever Ever Ever picked the most efficient route. Why did we ever leave the equator then in the first place, to willfully live on tundras and freezing islands where not much grows? 

Why did people move to mountains where future generations needed to be born with bigger lungs to breathe right?

Why have humans historically, for tens of thousands of years, cared for the sick and the disabled and the injured even thought that wouldn’t be an “efficient” use of resources? Why did we ever develop a sense of compassion at all?

Why did any human ever leave home to cross an ocean, or a desert, or a jungle, hoping to find a way to live whether they ended up?

We have never followed the rule of “efficiency.” In fact, read any reputable paper on human evolution and success, and you’ll see it argue that our refusal to follow the “efficient” road is what actually made the human species so successful–that our unrivaled adaptability and unprecedented resilience in an ever-changing world is what put us on top for so long.

So if you can’t keep up with “all these new genders and sexualities,” it seems like you’re the inefficient one, the weak link, and you’re going to get picked out and left behind.

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pervocracy

My backyard is a fairly wild and untended little patch of woods, and there’s more than one kind of tree there.  There’s maples, oaks, beech, birch, and a couple pines.  Which is interesting, because a really naive approach to ecology would suggest that a single Best Tree would exist for the conditions of my backyard, and the woods would optimize themselves to be entirely made up of whatever the Best Tree is.

But more often in the real world, the optimal solution is an equilibrium of multiple species.  Asking “which is stronger: oaks or maples?” misses the point that a diverse forest is stronger than a solid block of any one tree.  It’s also more true to the history of the land, and more likely to produce a sustainable future.

So you see.

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tropylium
when humans have Ever Ever Ever picked the most efficient route

They have, quite literally all the time!

OP probably thinks they’re asking tough questions, but we know of some pretty decent answers to all of these by now:

  • People moved to places like the tundra or the mountains because all the better locations were already populated. It turns out that “breathing oxygen-poor air” is a more efficient way to survive than “trying to hold your ground against a hostile barbarian horde”.
  • This is a general principle of macro-scale population movements all across history. Disadvantaged peoples have only ever had three options (still do, really): assimilate, get pushed to a more marginal area, or perish.
  • The mountains have really been a pretty decent choice for a more marginal area, since it is after all possible to evolve bigger lungs and hemoglobin-richer blood and thrive, now with an extra edge against any other would-be newcomers (probably the clearest example are the Tibetans, who even conquered their own empire during the 1st century CE). Whereas in something like the tundra you might get invaded again once your aggressive neighbors have acquired/developed some relevant technology, like winter clothing.
  • For an example, take something like the history of northernmost Europe. A mere 3000 years ago the area gets invaded by Indo-Europeans, who assimilate/wipe out about half of the earlier Old European cultures/languages; 2500 years ago, by some Uralians (we don’t know a ton about these people other than that they were there); 1500 years ago, by the Sami, who eventually assimilate all the remaining Old European languages and probably most of the earlier Uralians; 1000 years ago by the Norse, who settle along the coasts and assimilate all earlier peoples (we don’t know exactly whom; the published guess is stemline Germanic, but seafaring Sami groups don’t seem entirely out of the question to me either); 750 years ago, Finns/Karelias, who eventually assimilate a whole bunch of the Sami along the way and perhaps any remaining earlier Uralians; 500 years ago, Russians, who eventually assimilate a whole bunch of Karelians along the way; 250 years ago, finally, Swedes moving north along the inland and assimilating a whole bunch of Sami and Finns along the way.
  • Caring for the sick and disabled is efficient because your tribe doesn’t get by with only people who Hunt A Mammoth! That’s a great way to completely neglect contingency plans. But if you have a grandma at home, she can look after and educate the kids while you’re out gathering, and since you haven’t invented writing yet, she can also act as a repository of knowledge on anything ranging from useful medicinal herbs to how to survive during droughts to how to negotiate trade deals with neighboring tribes. Same for the disabled, for that matter, as long as we’re talking about very early human history: population growth rates were very low, if a person was even marginally capable of work then it probably would not have been a good idea to just kill them.
  • In cases of tough times where not everyone could be cared for, the first resort would not have been abandoning the disabled, it would have been contraception/abortion/infanticide; kids are a big investment and are also basically useless for several years early along in their life. Human women remain fertile for 30+ years and men nearly twice as long, people can easily wait out a famine or two if needed before starting a family.
  • The vast majority of humans never have departed to cross an ocean/desert/jungle. Explorers who truly didn’t know what they were getting into are not even one in a million; probably closer to something like one in a hundred million.
  • Oceanic exploration has been pretty much restricted to circumnavigating the coasts, all the way up to until this one guy pitched his ambitious startup idea in the late 1400s. Even this was synthesized from extensive knowledge of world geography accumulated over literally thousands of years: you need to know that (1) the earth is round, (2) China in the far east would be a lucrative trade partner, (3) this ocean seems like the right size that China will be on the other side. (And, amusingly enough, point 3 was wrong. With better geographic knowledge in the West, perhaps America would have gone undiscovered by the Old World for a good while longer…)
  • No, places like Iceland and Polynesia are not exceptions: all islands of this sort were scouted out by fishermen who knew how to notice signs of islands in the distance. Which is impressive in its own right, but it’s not “hey maybe we could just sail right across the ocean to China” level of wild.
  • Deserts and jungles are totally livable if you have the tech! or at minimum, the willingness to develop some tech. The desert people may have ended up there not quite of their own volition; see point 1, or the fact that the Sahara used to be a quite livable green savanna area as recently as the ice age. The jungles meanwhile have all sorts of cool fruits and not-quite-human-accommodated game to be a decently lucrative location all on their own.

And note that evolution doesn’t care whether you know that whatever you are doing is efficient, it only cares whether it actually is efficient. Hence if you see humans doing something that seems extremely “inefficient” … the real conclusion you should draw is not “humans exist outside of biology and can somehow do arbitrarily costly stunts with no punishment”. It is that weird human things are either (1) actually efficient for some purpose that we perhaps do not understand yet; or (2) some kind of a cultural glitch that will be in fact selected against in short order.

You can get a decent handle on if a thing is type 1 or type 2 by looking at history and anthropology: if it’s actually old and widespread, it’s probably type 1 (homosexuality, gender roles, caring for the elderly…); if it only appeared 200 years ago tops, it’s more likely type 2 (drinking soda by the gallons, third person pronouns as an open word class, watching anime as your purpose in life…)

As for 2P, all I need to say is that evolution is a competition. Ecosystems do not exist in an “equilibrium”, they exist in a constant battle for dominance. Perhaps nothing-but-oaks in their backyard would be optimal by some metric like photosynthesis accomplished per m², but it’s also the exact opposite of an effective strategy for the pines that already exist there. They’re not able to spontaneously transform into pines, but they’re also not going to just unilaterally surrender and keel over. I.e. it’s likely to be an ecological work in progress, perhaps in the wake of abandoned farmland, an earlier forest fire, etc. Give it 150 years and there probably won’t be a mixture of half a dozen tree species anymore, but instead a fully developed closed forest of mainly whatever is, in fact, the optimal species.

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