Andrea Hernandez @andyhernande9 - Twitter Profile

13 days ago

I resigned from Anthropic today. I spent the last three years doing pretraining research at both OpenAI and Anthropic. Neither company is acting responsibly. They are racing straight to self-improving superintelligence and gambling with our lives. More thoughts below.

21K

803K

167K

277K

173M

AndyHernande9 retweeted

Vincent Geloso

@VincentGeloso

20 days ago

Since Jeff Williamson died today, I want to share his best works with all of you. The first is my favorite: Unequal Gains. Its the price-theory based explanation of American inequality (and its measurement) from the colonial era to today. That book is simply superior in every way to what people tend to like more at the time it came out. The second is really good and its also about inequality but between nations. Its basically how the West grew rich in the 1850s-1950s while the rest grew rich too but more slowly. Its a history of how terms of trade affect institutions, and development paths through a variety of mechanisms. Its basically Jeff's book to say that Marxists theories of "exploitation" and "imperialism" are basically rubbish junks that use some true facts here and there to weave an elaborate theory. An elaborate theory that basic economic (i.e., relative prices, terms of trade, institutions) theory simply beats like a tank over a piece of toast and without any normative priors. Its just a great work. The third is the underrated work of his. Its a history of how Britain adjusted to industrialization and rapid city growth. It wasnt well received but, with hindsight and decades later, it has actually held up really well. Its a bit like the movie Event Horizon. It initially got thrashed but as time passed, it became appreciated. I was re-reading it for my EC365 class at GMU and its just fun and smart. The fourth one is the fun one. Its the book that Jeff wrote soon after getting to Harvard I think. And in it, you see all the themes he is going to harp on for many years. Its basically the "distilled" Jeff that gives the great overview (at an early formative stage) of his views on inequality throughout history. Its just so much better than 99.99% of what is being commonly cited. Jeff was just great about thinking about inequality and how it emerged. And in this, you see that its coming from a pretty centrist guy. He just wanted good economics and you see it there. Its a fun read.

VincentGeloso's tweet photo. Since Jeff Williamson died today, I want to share his best works with all of you.

The first is my favorite: Unequal Gains. Its the price-theory based explanation of American inequality (and its measurement) from the colonial era to today. That book is simply superior in every way to what people tend to like more at the time it came out.

The second is really good and its also about inequality but between nations. Its basically how the West grew rich in the 1850s-1950s while the rest grew rich too but more slowly. Its a history of how terms of trade affect institutions, and development paths through a variety of mechanisms. Its basically Jeff's book to say that Marxists theories of "exploitation" and "imperialism" are basically rubbish junks that use some true facts here and there to weave an elaborate theory. An elaborate theory that basic economic (i.e., relative prices, terms of trade, institutions) theory simply beats like a tank over a piece of toast and without any normative priors. Its just a great work.

The third is the underrated work of his. Its a history of how Britain adjusted to industrialization and rapid city growth. It wasnt well received but, with hindsight and decades later, it has actually held up really well. Its a bit like the movie Event Horizon. It initially got thrashed but as time passed, it became appreciated. I was re-reading it for my EC365 class at GMU and its just fun and smart.

The fourth one is the fun one. Its the book that Jeff wrote soon after getting to Harvard I think. And in it, you see all the themes he is going to harp on for many years. Its basically the "distilled" Jeff that gives the great overview (at an early formative stage) of his views on inequality throughout history. Its just so much better than 99.99% of what is being commonly cited. Jeff was just great about thinking about inequality and how it emerged. And in this, you see that its coming from a pretty centrist guy. He just wanted good economics and you see it there. Its a fun read.

5

264

50

193

7K

AndyHernande9 retweeted

Prime Minister of Canada @CanadianPM

25 days ago

CanadianPM's tweet photo. https://t.co/CSogJ3nVK6

3K

189K

20K

5K

5M

AndyHernande9 retweeted

Krutika Kuppalli, MD FIDSA

@KrutikaKuppalli

about 1 month ago

This is an irresponsible story The evidence is clear: COVID-19 vaccines do NOT increase the risk of miscarriage. A systematic review of 21 studies involving nearly 150,000 women found no increased miscarriage risk after vaccination https://t.co/nfgh1dgeNf Another study involving more than 1 million pregnancies worldwide have likewise found no increased risk of miscarriage, stillbirth, preterm delivery, or birth defects. https://t.co/1vxecjXvS5 What does pose a risk is COVID-19 during pregnancy. As an ID physician, I cared for very sick pregnant women with COVID, including women who developed serious complications. We should be guided by evidence—not fear. Publishing stories like this only serve the spread misinformation.

229

1K

301

68

83K