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Peter Turchin Profile picture
@Peter_Turchin
Jan 15, 2019 • 3 tweets • 2 min read • Read on X
SE Asian historians/archaeologists: Does this map from Higham and Thosarat (1998) "Prehistoric Thailand" reflect the current understanding of the spread of agriculture into SE Asia? Image
Not a single response! Either Twitter is not the right place to ask these kinds of questions, or I am not doing it right 😧
I was NOT doing it right! Many thanks to all who responded, especially
@seaarch @keir_strickland @siwaratrikalpa @benmarwick @cylerconrad @alisonincambo

#Seshat

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More from @Peter_Turchin

Peter Turchin Profile picture
Aug 30, 2022
@BretDevereaux In his response to @Noahpinion Bret takes a swipe in passing at my work. It is not clear to what he refers ("effort to find support for this hypothesis in the ancient world"), as my my main effort for empirically testing this hypotheses has centered on the US from 1789 to ...
@BretDevereaux @Noahpinion ... the present. With a huge emphasis on the contemporary America (from the 1970s on). Perhaps America in the late 20 century is an ancient country? The main source is Ages of Discord
peterturchin.com/ages-of-discor…
@BretDevereaux @Noahpinion I also stuck my neck out and made a scientific prediction in 2010, which unfortunately was borne out by reality
journals.plos.org/plosone/articl…
Read 14 tweets
Peter Turchin Profile picture
Aug 27, 2022
As I said, I really enjoyed this piece. Noah shows data for a bunch of new "proxies", variables that can help us with quantifying elite overproduction. Some reactions follow.
.@Noahpinion First, I disagree with the (apparent) criticism that my definition of elite overproduction focuses only on the supply -- it is explicitly the issue of balance of supply/demand. In #AgesOfDiscord I always consider both sides of the equation.
@Noahpinion Elite overproduction is always a relative thing, not an absolute one. The whole point is to understand what process generates frustrated elite aspirants, and how their numbers blow up, when supply starts to massively overwhelm demand.
Read 18 tweets
Peter Turchin Profile picture
Jun 22, 2021
There is a remarkably biased and deceptive piece in Foreign Policy with a critique of #Cliodynamics, among other things.

Thread

foreignpolicy.com/2021/06/20/his…
2. The author writes, “Peter Turchin and his collaborators have championed a new approach in which history as a discipline will be replaced by cliodynamics”. This is an outrageous falsehood. The relationship between cliodynamics and history is a mutualistic symbiosis.
3. I stress it every time I have an opportunity, for example, here:
peterturchin.com/cliodynamica/h…
and here, again:
peterturchin.com/cliodynamica/t…
Read 12 tweets
Peter Turchin Profile picture
Sep 30, 2020
1. Thanks for this calculation! The starting point is very interesting, but I am not sure the answer is right (there seem to be a few extra orders of magnitude...)

2. So let's try to simplify it.
3. 100 k people burn 200 k ha, so we have 2 ha burned per person.

4. Taking median standing crop biomass in grasslands as 300 g per sq.m (it varies, dry steppe is less, moist savanna is more, but let's for the order of magnitude).
5. That works out to 6,000 kg of dry matter (mostly cellulose) per capita burned.

6. Now let's compare it with my previous estimate of firewood burned by a Russian household, 3,000 kg. In per capita terms, 600 - 750 kg.
Read 5 tweets
Peter Turchin Profile picture
Sep 29, 2020
Which Preindustrial Society was the Most Energy-Rich?

1. Thanks to all who proposed their answers here, as well as commenters on my blog.

2. Remember that I formulated the questions so that the answer must be expressed as W (Watts) per capita. W=J/s

peterturchin.com/cliodynamica/q…
3. I now have three contenders, one that was a surprise for me, two that I had in mind when asked the question.

4. Let's start with the surprising one: hinter-gatherers burning grass-lands or brush-lands to create habitat suitable for their life-styles.
5. After initial resistance, I decided that this is a valid entry into the race. These people used energy to modify environment to suit their needs. Is that different from people using muscle power to cut forests for agriculture, or a modern farmer using bulldozers to clear land?
Read 16 tweets
Peter Turchin Profile picture
Jul 18, 2020
The conservative case for defunding the Pentagon
#antiwar
politi.co/32sIigq
The liberal case for defunding the Pentagon
#antiwar
politi.co/3hb4tMp
The socialist case for defunding the Pentagon
#antiwar
jacobinmag.com/2020/06/defund…
Read 9 tweets

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