braddelong.substack.com/p/podcast-hexa…

Key Insights: Matt Suandi—forced off of his India RCT development-economics project by the COVID plague—has taken the plague year to write a brilliant paper: Matthew Suandi: Promoting to Opportunity: Evidence and Implications from the U.S.... 1/
...Submarine Service <static1.squarespace.com/static/615a18f…>

In the early stages of the Pacific War, whether a US submarine-launched torpedo exploded was a matter of luck.

If a submarine captain had an enlisted man marked out for promotion, those promotions happened much more often... 2/
...if the submarine returned from its cruise having succeeded in sinking ships.

Those promoted because they happened to be on lucky submarines with torpedoes that exploded lived 2.4 years longer than their counterparts who happened to be on unlucky submarines and... 3/
...were not promoted.

Those promoted because they happened to be on lucky submarines with torpedoes that exploded are recorded as having a last known address in a zip code with housing prices higher by 7 percentiles than their counterparts who happened to be on unlucky... 4/
...submarines and were not promoted.

Early promotion to a job with more responsibility and scope—at least in the WWII-era USN—shapes your life to a remarkable degree by giving you scope to develop and exercise your talents.

If the WWII-era USN is typical, we waste huge... 5/
...amounts of human potential by not giving people workplace opportunities to show what they can learn to do.

Equality isn’t just about money: it is about scope for action, about developing and exercising talents, and about receiving external validation.

A good society... 6/
...would give people much more opportunity to discover how big a deal they are and can become, and remind them of this at every opportunity.
It is very, very important to conduct realistic live-fire tests under realistic conditions

A last key insight: Hexapodia!... 7/
...References: Matthew Suandi: Promoting to Opportunity: Evidence and Implications from the U.S. Submarine Service <static1.squarespace.com/static/615a18f…>... 8/
...Dud Torpedoes of World War II <ww2pacific.com/torpedo.html>... 9/
...Ian Toll: Pacific Crucible: War at Sea in the Pacific, 1941-1942, The Conquering Tide: War in the Pacific Islands, 1942-1944, Twilight of the Gods: War in the Western Pacific, 1944-1945

Herman Wouk: The Winds of War <amazon.com/Winds-War-Herm…>... 10/
...War & Remembrance <archive.org/details/warrem…>... 11/
...Anthony Newpower: Iron Men and Tin Fish: The Race to Build a Better Torpedo during World War II <amazon.com/Iron-Men-Tin-F…>... 12/
...+, of course:

Vernor Vinge: A Fire Upon the Deep <books.google.com/books?id=fCCWW…>... 13/
...Noah & I are so much the target audience for this paper that it is not even funny. 14/END

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More from @delong

4 Nov
BRIEFLY NOTED: FOR 2021-11-03 We, by @delong braddelong.substack.com/p/briefly-note…

First: Jason Zweig soft peddles the idiocy of Kevin Hassett and James Glassman on the 18 years-late Dow 36000 day. Buy-and-hold is a good investment strategy for the U.S. stock market. The strategy... 1/
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1 Nov
BRIEFLY NOTED: For 2021-11-01 Mo, by @delong braddelong.substack.com/p/briefly-note…

I see the late David Graeber is in the news today. I do not trust anything he ever wrote. Let me tell you why. Let me pick a chapter at random from Graeber’s Debt: The First 5,000 Years… I land on... 1/
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1 Nov
I see the late David Graeber is in the news today.

I do not trust anything he ever wrote. Let me tell you why.

Let me pick a chapter at random from Graeber’s Debt: The First 5,000 Years… I land on chapter 12… I start reading… I come to the third... 1/
...page <archive.org/details/DebtTh…> and find:

"I would hear occasional rumors of secret gold vaults underneath the Twin Towers in Manhattan.... After the Towers were destroyed… one of the first questions many New Yorkers asked was: What happened to the money?... Some... 2/
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30 Oct
BRIEFLY NOTED: 2021-10-30 Sa, by @delong braddelong.substack.com/p/briefly-note…

First: Science fiction. But the science is history. That is, as Paul Krugman observes, what made Isaac Asimov’s Foundation series so striking and thought-provoking: Paul Krugman: Introduction to... 1/
... “Foundation”: ‘how do the ‘Foundation’ novels lok to me now that I have, as my immigrant grandmother used to say, grown to mature adultery? Better than ever…<web.archive.org/web/2019091808…> 2/
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29 Oct
BRIEFLY NOTED: FOR 2021-10-29 Fr, by @delong braddelong.substack.com/p/briefly-note…

First: I must say that if I belonged to the Chinese Communist Party, I would not be at all confident about what the future is going to bring... 1/
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28 Oct
braddelong.substack.com/p/briefly-note…

BRIEFLY NOTED: For 2021-10-28 Th
Things that went whizzing by that I want to note & remember... 1/
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... coming down to us that grant them a place in Human Biographical Record entries, with no significant changes over the millennia. While the 1900s do show the highest female share of entries since the -2000s, the difference is not (yet) very large... 3/
Read 28 tweets

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