Ciaran Marshall

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Ciaran Marshall

Ciaran Marshall

@microfounded

Economist. Classical liberal. An infovore on a quest for discovery: writing about the social sciences, culture, philosophy, AI, and more.

United Kingdom انضم Ağustos 2025
353 يتبع189 المتابعون
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Ciaran Marshall
Ciaran Marshall@microfounded·
New post: I'm a supporter of both policies, yet one should never be unequivocal. As always, there's no free-lunch and legitimate tradeoffs matter. Nonetheless, the stupid populism of their opponents suggests that this bundle is the smart position to have. open.substack.com/pub/microfound…
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Jon Hartley
Jon Hartley@Jon_Hartley_·
RIP Chuck Norris
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Ciaran Marshall
Ciaran Marshall@microfounded·
This is why you don't go heterodox. The mainstream is mainstream for a reason. We care about causality, establishing a sound logical theory, etc. They treat econ as humanities. Say what you like about econ as importing the physical science methods. At least we care about rigour
Ciaran Marshall@microfounded

@mean_field_zane You get these Austrians that practice "hermeneutics" (reading what dead guys said), then some like Hayek intuitively grasped a fundamental concept of how the economy works. Very bimodal. Unfortunately corrupted by low IQ libertarians that dislike numbers.

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Ciaran Marshall
Ciaran Marshall@microfounded·
@perrymetzger The most conservative Muslims practice polyamory. Is it really correlated with social liberalism-conservatism? I'd argue not.
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Perry E. Metzger
Perry E. Metzger@perrymetzger·
Ignoring the question of far left, Geoffrey Miller has been an advocate for polyamory and non-monogamous lifestyles for decades. He is attempting to remake himself, on the basis that EA looks too much like a cult, but he is clearly not a conservative. (His handle on Twitter used to be “primalpoly” before he decided to start covering up his past.)
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Ciaran Marshall
Ciaran Marshall@microfounded·
@mean_field_zane Post Keynesians try to fake technical sophistication, but only get behind the assumptions without the microfoundations to justify an alternative.
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𝔐𝔽𝓩
𝔐𝔽𝓩@mean_field_zane·
Austrianism in the big 2025 is crazy to me because there literally exists a theory-before-data, idiosyncratic, anti-Keynesian school of economics that actually can claim to be right about everything (Minnesota Macro).
Philippe Lemieux@NeoRothbardian

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Ciaran Marshall
Ciaran Marshall@microfounded·
Leibniz tried to unify all of science into a universal language. He couldn't succeed, despite the advances in calculus. Gödel's theorem complicates any effort towards this. We have to settle for parsimony.
Dwarkesh Patel@dwarkesh_sp

The Terence Tao episode. We begin with the absolutely ingenious and surprising way in which Kepler discovered the laws of planetary motion. People sometimes say that AI will make especially fast progress at scientific discovery because of tight verification loops. But the story of how we discovered the shape of our solar system shows how the verification loop for correct ideas can be decades (or even millennia) long. During this time, what we know today as the better theory can often actually make worse predictions (Copernicus's model of circular orbits around the sun was actually less accurate than Ptolemy's geocentric model). And the reasons it survives this epistemic hell is some mixture of judgment and heuristics that we don’t even understand well enough to actually articulate, much less codify into an RL loop. Hope you enjoy! 0:00:00 – Kepler was a high temperature LLM 0:11:44 – How would we know if there’s a new unifying concept within heaps of AI slop? 0:26:10 – The deductive overhang 0:30:31 – Selection bias in reported AI discoveries 0:46:43 – AI makes papers richer and broader, but not deeper 0:53:00 – If AI solves a problem, can humans get understanding out of it? 0:59:20 – We need a semi-formal language for the way that scientists actually talk to each other 1:09:48 – How Terry uses his time 1:17:05 – Human-AI hybrids will dominate math for a lot longer Look up Dwarkesh Podcast on YouTube, Apple Podcasts, or Spotify.

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Robert Anderson
Robert Anderson@ProfRobAnderson·
Any news article about pollution from plastic bags or other plastic products that does not point out that the US produces essentially zero per capita plastic pollution is ridiculously misleading. You can't even see the US here because it's basically on the x-axis. In a lot of countries, people literally just throw all their trash in the river. That's the plastic problem.
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Emma Camp
Emma Camp@emmma_camp_·
I wrote about the weakest attempted MeToo-ing in recent history for @WSJFreeEx It's not 'grooming' for two 20-somethings to go on a few dates. And it is neither empowering nor particularly feminist to view women as perpetual schoolgirls, unable to consent to any romantic relationship that has a whiff of power imbalance.
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Luke Heeney
Luke Heeney@heeney_luke·
Most people: "Wow, you wrote a paper with a famous professor! You must be smart!" Economist hiring committees: "You wrote a paper with a famous professor? We're discounting your contribution to zero."
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John Stepek
John Stepek@John_Stepek·
Enjoyed this piece on rural pubs from @johndotwills - I hadn't joined the dots on how it's daft to have community "hubs" competing with the community pubs already there (as with many things, suspect this is an ongoing failure, not just the current govt) capx.co/labours-war-on…
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Siegmeyer of Catarina
Shut up, nerds! Dynare 7 is out and now it does HANK. HANK confirmed for commoditized. Your missed this train (too)! dynare.org/download/
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Yaron (Ron) Minsky
Yaron (Ron) Minsky@yminsky·
Another fun hiring spot at Jane Street: we're looking to hire some great hybrid writers-and-engineers. As we grow and do more, communication becomes ever more important, for both internal and external audiences.
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Richard Hanania
Richard Hanania@RichardHanania·
English speaking countries are experiencing lower levels of happiness, driven primarily by what's happening to young people. The British rank as the saddest of the bunch.
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