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Saloni Dattani Newsletter
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14 September
From one piece The Dollar Will Be the Last Pillar To Fall 2 beliefs, in the piece's order there
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korrents.com
The Trump administration is accelerating the decline and fall of American global hegemony.Their words
I honestly do not know if the Trump administration will be able to completely eviscerate American power over the next two year - but damn they sure seem to be accelerating the decline and fall of American hegemony.
The Dollar Will Be the Last Pillar To Falldanieldrezner.substack.com
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korrents.com
The U.S. dollar's continued global dominance is a lagging indicator, not proof that American hegemony remains intact.Their words
the dollar's status is not a harbinger of U.S. hegemonic decline - it's a lagging indicator.
The Dollar Will Be the Last Pillar To Falldanieldrezner.substack.com
11 September
9 September
8 September
7 September
5 September
2 September
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Their words
I do not see AI as driving these changes, but an interesting result nonetheless
29 August
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Their words
VO2 max, the peak of our triangle, is one of the strongest predictors of all cause mortality at any age, reliably predicts the physical activities we can take part in in our daily lives, and slowly decreases as we age.
20 August
From one piece We Actually Know A Lot About Fertility Decline 2 beliefs, in the piece's order there
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Their words
The main cause of falling fertility globally over the last 200 years has been declining child mortality.
We Actually Know A Lot About Fertility Declinelymanstone.substack.com
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Their words
we really do have a good causal model of how to think about fertility decline!
We Actually Know A Lot About Fertility Declinelymanstone.substack.com
13 August
12 August
11 August
3 August
31 July
20 July
From one piece Accelerate Learning & Increase Cognitive Capacity | Dr. Tommy Wood 2 beliefs, in the piece's order there
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Their words
And what they [snorts] found was that the most important predictor of how well somebody performed at those piano specific skills was not their age, it was how much they practice.
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korrents.com
Cognitive decline is a staircase rather than a slope: the big drops happen after episodes of serious illness.Their words
cognitive function doesn't just decline sort of linearly or steadily with age. It goes down, you know, a little bit on average, but the biggest decreases sort of happen stepwise after periods of significant illness.
16 July
13 July
From one piece How to Improve Your Memory & Cognitive Function at Any Age | Dr. Alan Castel 2 beliefs, in the piece's order there
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Their words
but as you get older that tends to decline with age which I thought was kind of perplexing because I you know a lot of curious people but we found that levels of state curiosity when I give you some interesting bit of information but I don't give you the answer if it's something you care about that actually increases with age your level of curiosity and learning.
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korrents.com
Happiness across a life is a curve rather than a decline, and its lowest point is midlife, not old age.Their words
there's some interesting work on you know happiness being more curve linear like midlife is actually some of the lowest levels of happiness and life satisfaction
11 July
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Their words
Sleep is a lever on body composition, metabolism, and mood, and deprivation pulls in the wrong direction across nearly every axis at once.
8 July
28 June
16 June
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Their words
But when I think about all the goals I have in my life right now—finish this Substack, get the house ready for some visitors, prepare a course for next year, write a paper, etc.—none of it is driven by an appreciation of my mortality.
Immortality Sounds Pretty Good, Actuallysmallpotatoes.paulbloom.net
3 June
26 May
19 May
10 May
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korrents.com
Europe is not in economic decline; by the measures that matter most it is keeping up with the United States.Their words
Moreover, by many measures — arguably the most important measures — Europe is, in fact, keeping up with the United States.
23 April
28 March
From one piece America Got a Little More Religious. No, Really. 2 beliefs, in the piece's order there
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korrents.com
A statistically significant change is not the same as an important one, and survey data cannot tell you which it is.Their words
Whether that decline matters is a different question — and one the data alone can’t answer.
America Got a Little More Religious. No, Really.graphsaboutreligion.com
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korrents.com
The growth of the religiously unaffiliated in America has stopped and gone into reverse.Their words
There’s clearly been a numerical decline in the nones. That seems pretty hard to ignore now, and it’s showing up in multiple data sources.
America Got a Little More Religious. No, Really.graphsaboutreligion.com
23 March
12 February
9 February
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korrents.com
The United States' share of global GDP and equity markets will keep shrinking, and that decline is accelerating.Their words
For these reasons, I see that declining trend of the US share of the world economy described above accelerating.
7 February
13 January
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korrents.com
Knowing that poverty and child mortality have actually fallen is what makes people think the future can improve.Their words
Only 17% of those who got no correct answers on historical development changes thought the world would be better off. 62% of those with more than five correct answers did.
25 December 2025
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korrents.com
Rebuilding American manufacturing is a decades-long educational and cultural project, not something tariffs can do.Their words
America needs an educational and cultural transformation to compete with China and reverse the decline in living standards that Americans have suffered over decades.
8 December 2025
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Lovedrcmnd.app
The Decline of DevianceTheir words
My favorite recent piece on our cultural stagnation is Adam Mastroianni’s
23 November 2025
From one piece China bows to de-industrialization 2 beliefs, in the piece's order there
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Their words
There's even a case to be made that those policies actually depressed the manufacturing share of GDP: by boosting output and capacity above where they would have been otherwise, subsidies probably contributed to the sustained decline in prices for China's manufactured goods over the past few years, weighing on their share of nominal output.
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korrents.com
A declining manufacturing share of GDP as an economy matures reflects economic success rather than decline.Their words
Both of these trends are a consequence of economic success, in terms of higher output and productivity: at least some of what is decried as "de-industrialization" is good actually. It is also good for China's planners to recognize that reality and not distort the economy in pursuit of an impossible outcome.
4 September 2025
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Their words
But yeah, there's been a back and forth about whether dinosaurs were already on their way out or were they a bit limited by the very end of the Cretaceous. I think the more recent analyses have shown that's probably not the case, because in other words, they were basically doing fine right up to the extinction event. And so yeah, if the asteroid hadn't hit, there's no reason to think that they were on some kind of terminal decline.
29 July 2025
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Their words
Morowali’s poverty rate has seen a modest decline since 2016, from around 15% to 12%, but this puts it squarely in the middle of the pack of other Sulawesi districts—and not far from the decline in the national average, which fell from 10.9% to 8.6% over the same period.
22 July 2025
15 July 2025
From one piece There Is No Long Decline in Fertility 2 beliefs, in the piece's order there
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Their words
the key point is that as child mortality declines, live births can be allowed to decline without changing desired family size
There Is No Long Decline in Fertilitylymanstone.substack.com
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Their words
What you can see is that the “long decline” of TFR since the late-19th century is… an illusion! It isn’t real!
There Is No Long Decline in Fertilitylymanstone.substack.com
24 April 2025
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Their words
In my view, without smoking, we probably would have seen cancer mortality decline much earlier.
20 February 2025
From one piece Why are Marriage & Fertility Plummeting in MENA? 2 beliefs, in the piece's order there
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Their words
But over the past 50 years, there has been a massive decline in fertility. This entails fewer cousins of a suitable age.
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Their words
The Middle East, North Africa and Anatolia are witnessing a rapid decline in coupling and fertility. This should rock your priors.
19 January 2025
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Their words
If you have the overall business slowing down, your head of growth is destined to fail because the reason business is slowing down is much deeper than not having a growth team.
1 November 2024
From one piece Why is Fertility Collapsing, Globally? 3 beliefs, in the piece's order there
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korrents.com
Government payments and benefits aimed at raising birth rates do not reverse the decline.Their words
Across the OECD, governments are upping their spending. But a wealth of research suggests these fail to mitigate the downward trend.
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korrents.com
The fall in childbearing in rich countries is concentrated among the less educated, not among female graduates.Their words
Slurs of ‘childless cat ladies’ usually target female graduates, but in the US, Sweden and Finland the real decline is happening among people with less education.
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Their words
From the 1960s, US fertility fell primarily due to fewer births among couples. In that context, baby bonuses might raise fertility. But today, the major contributing factor is the decline of coupling.
5 September 2024
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korrents.com
American shipbuilding has been uncompetitive for a century; it is not a recent decline.Their words
The situation we face today, with U.S. ships costing at least twice as much to build as ships built elsewhere, is not a recent development; it’s been the norm for at least the past 100 years.
25 May 2024
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Their words
about this idea that really when you’re older in most societies, your job is no longer to form new episodic memories, it’s to pass on the memories that you already have, this knowledge about the world, what we call semantic memory, to pass on that semantic memory to the younger generations, pass on the culture.
2 January 2024
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korrents.com
The long decline in mortality is not guaranteed to continue: new shocks and old unsolved diseases can reverse it.Their words
None of these trends are a given.
14 December 2023
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Their words
If you think about the good old days, they're mostly an illusion. In almost every way, life is better for almost everyone today than it was say 50 years ago or 100 years ago. We live better lives by and large than our grandparents did, and their grandparents did, and so on. And you can see that in global illiteracy rates, global poverty rates, global infant mortality rates. Almost any metric you choose, we're better off than we used to be.
11 October 2023
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Their words
A number of commentators have consistently predicted that solar cost improvements will level out “this year” since about 1990, and yet if anything deployment, cost decline, and the learning rate have only improved.
7 June 2023
1 June 2023
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korrents.com
A world without mass child mortality does not have to be imagined, because rich countries are already living in it.Their words
I think we don’t have to imagine what a future could look like without this immense loss.
What does it mean when fewer people die?scientificdiscovery.dev
29 May 2023
11 October 2022
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korrents.com
Published effect sizes shrink as more studies are done, and that decline is what the replication crisis is made of.Their words
The decline effect is the idea that scientific findings get smaller over time. That is, initial findings tend to report effect sizes that then crumble away—sometimes to nothing—with subsequent research.
From one piece Review of DeLong's "Slouching Towards Utopia" 2 beliefs, in the piece's order there
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Their words
What I’m nitpicking here is that this decline in fertility deserves equal billing with the research lab, corporation, and globalization.
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Their words
It was an acceleration in productivity combined with a decline in population growth that put us on a slow trudge towards utopia.
2 September 2022
1 June 2022
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Their words
Real interest rates have steadily declined in all major economies for more than three decades. This decline was not caused by the Global Financial Crisis or the Covid crisis.
31 August 2021
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korrents.com
Boeing's decline began when its management moved away from the factory and the engineers stopped running it.Their words
The changes separated its management and board from the day-to-day processes at the heart of its business.
America's Aerospace Industry is Regeneratingaustinvernon.site
20 October 2020
14 May 2020
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korrents.com
Average solar electricity prices in sunny parts of the world will fall to one or two cents per kwh by 2030 or 2035.Their words
This incredible pace of solar cost decline, with average prices in sunny parts of the world down to a penny or two by 2030 or 2035, is just remarkable.
18 November 2019
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Their words
Air pollution is a very big deal. Its adverse effects on numerous health outcomes and general mortality are widely documented. However, our understanding of its cognitive costs is more recent and those costs are almost certainly still significantly under-emphasized. For example, cognitive effects are not mentioned in most EPA materials.
1 July 2017
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