Research Fellow @joinFAI; opinions mine not theirs | Working to make US transportation faster, cheaper, more reliable, & less safe | prev: Econ & CS @UChicago

Inside the Beltway, USA
I think they need to legalize adderall first
JUST IN: Chinese President Xi Jinping announced that China will invite 100,000 young Americans to visit the country for exchange and study programs over the next five years.
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Oh. What?
I’ve been on max. 2 cups of coffee per day for years, but now it seems I should drink more? More coffee = less body fat, less belly fat and more muscle, even at the same BMI. Also, for men total testosterone went up about 8 ng/dL per daily cup too.
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extremely annoying how this is becoming more and more demonstrably true for the american left do you think this is how chinese free marketeers felt about the communist movement in like 1916-1937
if you want more regulation and an anti-growth mindset, vote for centrist technocrats. if you want deregulation and free enterprise, vote DSA
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I find it strange how the official name of a big snowstorm is a "noreaster". Like, the Bostonian pronunciation of Northeaster? Who let them get away with that? And why would we call it that anyways? What value does this name add over "big snowstorm" or "blizzard"?
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Lucas Pombo (aka Lib Development) retweeted
Trad architecture housing twitter should note the zero dots next to “appealing design with landscaping.”
visual representation of why housing is so hard to build
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Extremely exciting news for americans interested in purchasing vehicles:
Trump: If China wanted to come in and open a plant to build their cars here, I would be okay with it. Japan does it. But they hire our people. The big thing is they hire our people. In fact, they use our people.
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One of the most frustrating things about NYC is this urban form. The towers in the background were conversions of former warehouses. When you're starting from an environment with no neighbors, you can build a real modern urban environment. And it's in New York! It's really nice! But these f***ing brownstones can never be replaced. And the brownstones are most of the city. The most doomed permitting environment the world has ever constructed.
Mott Haven is starting to give serious Long Island City energy.
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Lucas Pombo (aka Lib Development) retweeted
Hardening critical infrastructure should be a priority for policymakers, state and local officials, and operators today. Rather than stand up a new grant program or write new rules, let’s find a solution that can keep pace with the rate of technological change.
"Federal tax incentives for cybersecurity software investment offer a faster solution than creating new government programs." In @CyberScoopNews, @JoshuaTLevine and @LarsESchonander call on the executive branch to clarify how the tax code applies to cybersecurity expenses.
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The shape of the gdp estimate curve should be an indicator that this is not a serious analysis of “can we grow out of the debt”
Bad news - we cannot grow our way out of the debt.
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a serious analysis would entail contemplating a menu of policies which could increase the growth rate, or combinations of those policies
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shame to see the preeminent style guide producers outing themselves as morons
Artificial intelligence systems do not think, feel, want or understand. Avoid language that gives them human characteristics. This is called anthropomorphizing, when we ascribe human traits, emotions or behaviors to non-human things, such as animals or inanimate objects. Instead, explain what a system does, how well it performs, who built it and who could be affected by it. apnews.com/article/openai-sa…
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I just refuse to believe people are this surprised that an ai agent wouldn’t whistleblow. Like, have you seen real life whistleblowers? It takes some pretty serious wrongdoing *and* an unbelievably unconventional personality, the kind that gets RL-ed out of an AI
the uncanny valley is somehow getting uncannier newyorker.com/magazine/2026/…
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Maybe the problem is that we trust journalists, who are essentially a self-selected cluster of professional whistleblowers, to come up with these kinds of judgements. This is incredibly normal behavior to almost anyone high-achieving except them
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or maybe even then, journalists just expect whistleblowing from others to an unusual degree. how many new york times journalists blew the whistle on the hit-pieces-only tech coverage policy? well, one, because we know about it, but it was matt yglesias and it took several years
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gut instinct is that in the event of a double gas-and-diesel shortage this isn’t really correct, although I don’t really know what the short term elasticity of diesel consumption is. my intuition is that we’d find a way to use the extra diesel and gas wouldn’t be impacted
This is peak desperation and only works for a very short window of time. Gasoline and Diesel production are HIGHLY CODEPENDENT. We produce much more diesel than we consume and export the excess. If we ban exports, then our national diesel storage capacity will fill up very rapidly. All of that diesel that we would normally export will end up in storage tanks. Once the tanks fill, we can't produce more diesel. Refiners have to scale back / shutdown production because they have nowhere to store it. That means that gasoline production ALSO gets shutdown / scaled back. You can't produce one and not the other. You can increase or decrease how much you're making of each to optimize the market, but you need to make both at the same time. The result? Catastrophic gasoline shortage with skyrocketing prices as refiners are unable to run at full rate due to the diesel glut. This cascades down the entire ecosystem. Refiners can't take delivery because they can't refine. That caused oil storage capacity to fill up. In response, O&G extraction firms have to scale back oil their operations because they have nowhere to put the excess. That cascades down to electricity and home heating because 37% of US Natural Gas is a byproduct of oil extraction as opposed to single purpose Nat Gas wells. Decrease the oil output and the Nat Gas output decreases as well. Electricity and home heating skyrocket. Will this desperate move lower the cost of diesel at the pump in the short term? Yeah. It probably will. But long term, it's impossible. None of those scenarios that I mentioned will ever happen because it would be suicide. As soon as the diesel storage begins to approach capacity, they'll have no choice but to reinstate exports because the alternative is complete economic collapse of the country.
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Looked this up and apparently the US is 14% of global diesel exports
*US PREPARES 90-DAY DIESEL EXPORT BAN: POLITICO
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clearly #1 in the world btw, #2 is russia
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Does anyone want to guess which bus system or subsystem redesign in my analysis produced the most net speed improvements? (This one is actually super guessable; there was a major concurrent infrastructure change)
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i would make a joke about how the train wasn't wearing bright colors, but it's a, uh, bright line
The murder train is going bankrupt! 👀 The deadliest train in America, Brightline, which has killed 200+ people since 2017, is getting ready to restructure $1.1 billion in dead. The Brightline is notorious in South Florida for killing someone on average every 13 days. High-speed trains running at street level through quiet zones, hundreds of grade crossings, long stretches of unfenced track. Despite the bankruptcy, the train will continue operating as normal for now!
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