Crémieux Profile picture
Mar 12 • 9 tweets • 3 min read • Read on X
Manhattan is arguably America's most iconic city, and more arguably, its only 'real' city.

But its own laws have made the buildings that make it so iconic illegal to build more ofđź§µ Image
Many of the existing buildings in Manhattan that you couldn't make today are too tall by current standards. Image
Many of the existing buildings in Manhattan that you couldn't make today have too many apartments by current standards. Image
Many of the existing buildings in Manhattan that you couldn't make today have too much space dedicated to business by current standards. Image
Many of the existing buildings in Manhattan that you couldn't make today have building footprints that are too tall by current standards. Image
But the buildings that make New York tall, dense, and filled with architectural juxtaposition also made New York so iconic, they made it more livable than it would've been otherwise, and they made it great.

The new laws simply don't respect the old vision for New York. Image
This problem isn't unique to New York either.

In tons of American cities, existing builds are illegal by new standards that are generally not justified by any sort of safety or quality concerns, but which instead are driven by local interest groups and dumb policymakers.
For example, in San Francisco, 54% of all homes that exist there are illegal to build today! Image

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More from @cremieuxrecueil

Nov 6
This analysis falls flat when you look into these people or think about how so many other "vons" were not as brilliant.

Von Neumann's brilliance preceded formal education and any tutoring. His advanced math tutor noted that he was smarter than him from their first meeting!Image
Von Neumann was noted to be eidetic by 3.

By 6 he could divide two 8-digit numbers immediately in his head.

He picked up multiple languages by 7, long before his similarly-instructed cousins and brothers.

By 8, he could do calculus.

His precocity *inspired* hiring a tutor. Image
Absolutely tons of upper-bourgeois families in Budapest supplemented schooling with tutors, governesses, etc.

But von Neumann—who had far from the best education among them—outmatched them with ease.

Moreover, he had plenty of superhuman abilities! Image
Read 10 tweets
Nov 4
What do studies say about "freezing the rent"?

Let's have a threadđź§µ

First thing's first: Most studies agree that rent controlled units have lower rents, but also the supply of rentable units goes down and un-controlled units see their rents increase.

Uh-oh! Image
Rent control also means that fewer homes get built, and it means that housing quality drops.

After all, if you can't raise the rent, what incentive do you have to make everything sparkly and neat? Image
Rent control lowers residential mobility, meaning people stay put longer

That's not good because it causes misallocation

Consider an elderly family whose kids left the nest. They should move to a smaller place, but rent control keeps them in place, so new families can't move in Image
Read 8 tweets
Nov 3
I'm not taking a stance on whether inflammation drives cancer, but I will say it's very true that GLP-1 drugs reduce inflammation—a lot!

Tirzepatide at any dose greatly reduced levels of high-sensitivity C-reactive protein and interleukin-6, two important inflammation markers: Image
I have actually had people thank me for getting them on this stuff precisely because they had inflammation issues that these drugs *immediately* solved for them.

Here's an example I've posted before: this man's back pain was cured!

Read 4 tweets
Oct 31
The CDC's new Advisory Committee on Immunization Practices (ACIP) didn't put out immunization guidance for 2025-26.

So some researchers got together and did the government's job for them. Here's what they foundđź§µ

First, the RSV vaccine is great for preventing hospitalization! Image
The next thing up is the flu vaccine.

These are still showing a touch lower efficacy than in previous years, but they're still

(1) good
(2) worth it
(3) even more worth it for infants and children Image
Then we have the COVID vaccines, which still seem to be useful enough to save a lot of lives.

These are also still better for the old.

That's good! Image
Read 6 tweets
Oct 27
How rich are American workers?

Very!

After accounting for taxes, transfers, cost of living differences and so on, American workers make far more than their counterparts across the OECD. Image
Is this just because Americans work more?

No. That has something to do with it for some comparisons, but it's not everything.

Americans are also more productive and they get to take home more of what they earn. Image
This is an update on the 2021 numbers I previously presented here: x.com/cremieuxrecuei…, x.com/cremieuxrecuei…, x.com/cremieuxrecuei…

When we have 2024 numbers or later numbers, I'll update to those. But we have to wait on the OECD to release that data, so until then, enjoy!

Here's the old style plots if you want those:Image
Image
Read 4 tweets
Oct 27
Wow!

Across basically all of Europe, people at higher income levels are now *more likely* to become parents!

This is a stunning shift! Image
Among men, this relationship goes a while back now, and in several places, the income gradient has gotten more extreme. Image
Among women, there are some recent crossover events, where the low-income used to be more likely parents than the rich, but now it's different. Image
Read 6 tweets

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