Joe Weisenthal

Joe Weisenthal

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Co-host, Bloomberg Odd Lots; daily markets/macro takes on U.S. stocks and policy.

Seeking Neuroscientist for Feasible, Ethical, Affordable Experiment
SocialMay 10, 2026

Seeking Neuroscientist for Feasible, Ethical, Affordable Experiment

I have an idea for what I believe would be a feasible, ethical, and (probably quite) affordable neuroscience experiment. Do I know anyone in the field (or know anyone who knows anyone) who’d be up for chatting with me for...

By Joe Weisenthal
AI Hallucinations Minor Concern; Language Naturally Produces Nonsense
SocialMay 9, 2026

AI Hallucinations Minor Concern; Language Naturally Produces Nonsense

If you look at the replies here, you’ll see a lot of people confidently giving both possible answers. This is one reason why “hallucinations” are very low on my list of reasons to be worried about AI. Bullshit is just...

By Joe Weisenthal
Figma IPO Price Isn’t Proof Merger‑blocking Fuels Wealth
SocialMay 9, 2026

Figma IPO Price Isn’t Proof Merger‑blocking Fuels Wealth

Remember when some antitrust folks were using Figma’s successful IPO as evidence that merger-blocking was also great for capitalist wealth creation? This isn’t to say the block was wrong based on the law. But the (initial) high share price was never...

By Joe Weisenthal
Sci‑fi Author, Not Tech Firm, Fuels AI Villainy
SocialMay 9, 2026

Sci‑fi Author, Not Tech Firm, Fuels AI Villainy

Everyone loves this tweet, but it got it completely wrong. It is the sci-fi author — not the tech company — who is the true villain, for having put the story of the Torment Nexus into the training data. https://t.co/ScikINGM0T

By Joe Weisenthal
Doing Real Work Signals Claude‑generated Text
SocialMay 8, 2026

Doing Real Work Signals Claude‑generated Text

You should add the phrase “doing real work” to the list of signs that the text you’re reading was probably generated by Claude.

By Joe Weisenthal
Britain Tonight: Elections and Live Show Could Shift Markets
SocialMay 7, 2026

Britain Tonight: Elections and Live Show Could Shift Markets

TWO BIG REASONS TO WATCH BRITAIN TONIGHT: I wrote the the local elections taking place here, as well as our live show in London. One could contain highly consequential signals for global markets and the other could be a good night...

By Joe Weisenthal
Iran War Triggers Diet Coke Can Shortage in India
SocialMay 7, 2026

Iran War Triggers Diet Coke Can Shortage in India

"The Iran war has caused a shortage of Diet ​Coke in India, where it is sold only in aluminium cans that ‌have run short because of delayed shipments from the Gulf caused by the Iran war." https://t.co/uky4g78BIA

By Joe Weisenthal
Cities Can Revive Manufacturing Within Urban Limits
SocialMay 7, 2026

Cities Can Revive Manufacturing Within Urban Limits

NEW ODD LOTS: How American cities can become hubs of manufacturing. @tracyalloway and I had an amazing chat with Allentown PA mayor Matt Tuerk about the case for having manufacturing inside the city limits, and what it takes to bring these operations...

By Joe Weisenthal
Singularity Predictions Rely on Naive Linear Progress Myth
SocialMay 7, 2026

Singularity Predictions Rely on Naive Linear Progress Myth

Never read anything quite like The Singularity Is Near. In 2004, Ray's writing stuff like "Sometime in the 2020s, we'll have AI that begin can work on their own successors" and his evidence is basically a straight line time series...

By Joe Weisenthal
Discover Justin Townes Earle’s Life in New Biography
SocialMay 7, 2026

Discover Justin Townes Earle’s Life in New Biography

Lovely interview with the author of a new biography about Justin Townes Earle, someone who's music I've gotten really obsessed with in the last few years. https://t.co/2Kb2Dx2yE0 https://t.co/nOMe6Jat8z

By Joe Weisenthal
Cities Thrive on Dense Communities of Interesting People
SocialMay 6, 2026

Cities Thrive on Dense Communities of Interesting People

I loathe cities discourse. But. The correct answer is the density of interesting people doing interesting things. If you want to be in a packed room of people all smarter than yourself, that you can learn things from (which to...

By Joe Weisenthal
Tool AI Inevitably Evolves Into More Useful Agentic AI
SocialMay 6, 2026

Tool AI Inevitably Evolves Into More Useful Agentic AI

Great line from Zvi: "And I’ve been saying, for years, that the problem with this ‘mere tool’ approach, the quest for Tool AI, is that the first thing people would do to Tool AI is turn it into Agentic AI, because...

By Joe Weisenthal
AI May Forge a New Shared Reality Beyond Hallucinations
SocialMay 6, 2026

AI May Forge a New Shared Reality Beyond Hallucinations

Great piece from @JerusalemDemsas. For as much as people like to talk about AI "hallucinations", the much bigger story might be how often what they say is actually true, and that perhaps AI (as post-social media) may usher in a...

By Joe Weisenthal
Ranchers Profit From Calf Shortage, Driving Beef Prices
SocialMay 5, 2026

Ranchers Profit From Calf Shortage, Driving Beef Prices

Absolutely fantastic piece about why beef prices are so high. Contrary to what many people may surmise, it's not the meatpackers getting margin right now. It's the actual ranchers, who are benefitting from an overall scarcity of calves https://t.co/kCJ8qf30ZE https://t.co/AAAodfrc0H

By Joe Weisenthal
Country Stars Can Franchise Their Brand Internationally
SocialMay 4, 2026

Country Stars Can Franchise Their Brand Internationally

If you’re a country singer, you can franchise out your own identity in another country. Just found out the UK has its own Luke Combs https://t.co/8eilwuREse

By Joe Weisenthal
China Directs Firms to Defy U.S. Sanctions
SocialMay 4, 2026

China Directs Firms to Defy U.S. Sanctions

"China has ordered its companies to ignore US sanctions, an unprecedented act of defiance...." https://t.co/OAdUIaZIyP

By Joe Weisenthal
Baltimore Mayor Tackles Vacant Homes to Revive Growth
SocialMay 4, 2026

Baltimore Mayor Tackles Vacant Homes to Revive Growth

NEW ODD LOTS: How Baltimore's mayor is fighting the city's vacant housing crisis @tracyalloway and I talk to @MayorBMScott a very different type of real estate problem than many cities have, and what it takes to bring in investment and population https://t.co/SMX8zfpera

By Joe Weisenthal
Hipster Loft Era Ended Before We Even Arrived
SocialMay 4, 2026

Hipster Loft Era Ended Before We Even Arrived

One funny thing about this discussion. Having moved to North Brooklyn in 2004, I think we had the sense even then that the golden days of the “hipster loft” was already in the past. Important lesson in that.

By Joe Weisenthal
ChatGPT Wins over Claude for Built‑in URL References
SocialMay 2, 2026

ChatGPT Wins over Claude for Built‑in URL References

Really noticed myself using ChatGPT more than Claude lately, in large part because it more frequently defaults to including external URLs, rather than just synthesizing ideas.

By Joe Weisenthal
Jackson Hole Speech Marks Most Hawkish Remarks Yet
SocialMay 1, 2026

Jackson Hole Speech Marks Most Hawkish Remarks Yet

His speech at Jackson Hole that year is the most hawkish speech in the entire corpus IIRC

By Joe Weisenthal
Fedlock's Hawkishness Score Climbs Sharply with Recent Statements
SocialMay 1, 2026

Fedlock's Hawkishness Score Climbs Sharply with Recent Statements

As discussed below, Fedlock's aggregate hawkishness score continues to rise noticeably, with the latest communication from Kashkari, Powell, and Hammack all registering high relative to their recent comms https://t.co/b7k8lndodx

By Joe Weisenthal
Websites Are Suddenly Cranking Up Bot Blocking
SocialMay 1, 2026

Websites Are Suddenly Cranking Up Bot Blocking

Have websites suddenly gotten more aggressive about blocking scrapers/bots like just in the last few weeks? EG Claude Code telling me it can't extract Kashkari's new statement out today, due to a 403 error. Can't remember that having been an...

By Joe Weisenthal
Taiwan: World's Most Perilous Chokepoint Threatening Global Stability
SocialMay 1, 2026

Taiwan: World's Most Perilous Chokepoint Threatening Global Stability

NEW ODD LOTS: Taiwan is the world's most perilous chokepoint @tracyalloway and I talk to @eyckfreymann, author of the new book 'Defending Taiwan: A Strategy to Prevent War with China, about the high stakes and high risk if China moves on Taiwan...

By Joe Weisenthal
UAE's OPEC Exit Driven by Saudi Rift
SocialApr 29, 2026

UAE's OPEC Exit Driven by Saudi Rift

Good read on some of the political context, particularly its growing rift with Saudi Arabia, behind the UAE’s exit from OPEC https://t.co/yn0CJC4TLg

By Joe Weisenthal
Apple’s AI Role Questioned as Macs Sell for LLMs
SocialApr 29, 2026

Apple’s AI Role Questioned as Macs Sell for LLMs

This might a dumb question but why do people talk about Apple not being a player in AI at the same time as people talk about Macs instantly selling out because people use them for self-hosting LLMs?

By Joe Weisenthal
Dynamic Currency Conversion Lets Merchants Choose Euro or Dollar
SocialApr 27, 2026

Dynamic Currency Conversion Lets Merchants Choose Euro or Dollar

Question for a payments expert. What I pay for something by card in Spain, the reader offers me the choice to pay in euros or dollars. Obviously dollars are removed from my account. And the cafe gets euros. So what’s really going...

By Joe Weisenthal
Appreciating Fukuyama, Yet Questioning a Highlighted Passage
SocialApr 26, 2026

Appreciating Fukuyama, Yet Questioning a Highlighted Passage

There’s a lot to like in The End of History. It’s a good book. Fukuyama is very insightful in it on a number of things. But I don’t get what’s so great about this particular passage.

By Joe Weisenthal
NYC Craves Next Taiwanese Fried Chicken Boom
SocialApr 26, 2026

NYC Craves Next Taiwanese Fried Chicken Boom

Mike is speaking the truth here. NYC really needs a Taiwanese fried chicken boom the way we had one with Korean fried chicken about 15 years ago.

By Joe Weisenthal
Exploding Model Capabilities Chart Is Key Benchmark
SocialApr 25, 2026

Exploding Model Capabilities Chart Is Key Benchmark

NEW EPISODE: Understanding the most viral chart in AI @tracyalloway and I talk to @ChrisPainterYup and @joel_bkr of @METR_Evals about what this chart of exploding model capabilities is actually showing, and why they think it's the key benchmark to watch https://t.co/11P3UKZkE8 https://t.co/Dt3HYNOWyu

By Joe Weisenthal
US Stocks Surge Post‑War, Outperform Global Markets
SocialApr 24, 2026

US Stocks Surge Post‑War, Outperform Global Markets

American stocks had been underperforming the rest of the world for several months. And the very bottom was of this was on February 27th, right before the war started. The US started a war, and since then its stock market...

By Joe Weisenthal
Opus 4.7 Adopts a Subjective, Opinionated Tone in Responses
SocialApr 24, 2026

Opus 4.7 Adopts a Subjective, Opinionated Tone in Responses

I basically never use LLMs for "chat" so I don't really notice when their "personalities" change. But does Opus 4.7 have a greater proclivity to talk as though it has a subjective view of the world. I gave it a...

By Joe Weisenthal
Exploring AI-Driven Diagnostics for Vintage Hardware
SocialApr 24, 2026

Exploring AI-Driven Diagnostics for Vintage Hardware

Has anyone experimented with using Claude Code or Codex for device diagnostics? Like if you, say, plugged in an old laptop or Nintendo or Commodore 64 into your computer, could the AI take control of that device and retrieve data...

By Joe Weisenthal
ARKK Stagnates Year‑to‑Date, No 2021 Euphoria
SocialApr 24, 2026

ARKK Stagnates Year‑to‑Date, No 2021 Euphoria

$ARKK is flat on the year. This is not a generalized market euphoria like 2021

By Joe Weisenthal
Bull Market Thrives Even as Consumer Sentiment Hits Historic Low
SocialApr 24, 2026

Bull Market Thrives Even as Consumer Sentiment Hits Historic Low

THE COMPLETELY RATIONAL, CRAZY BULL MARKET In today's newsletter, I wrote about how it makes total sense for the stock market to be surging to all time highs almost every day, even as consumer sentiment plunges to its lowest level in...

By Joe Weisenthal
Indonesia's Three Straits Outpace Pre‑War Hormuz Traffic
SocialApr 24, 2026

Indonesia's Three Straits Outpace Pre‑War Hormuz Traffic

Very interesting table from @ByMeganONeil on some other maritime chokepoints that could theoretically become toll ways. Interesting how Indonesia is adjacent to three distinct Straits that each have more ship traffic than Hormuz did pre-war. https://t.co/FpJ3aWYqyd

By Joe Weisenthal
X‑bar Trees Reveal AI Isn’t Merely a Next‑token Predictor
SocialApr 24, 2026

X‑bar Trees Reveal AI Isn’t Merely a Next‑token Predictor

Something that's extremely meta is asking Claude to create an x-bar tree of a sentence, and then watching how it fills it in. Because the x-bar format explains how the human brain isn't a "next token predictor" and you can...

By Joe Weisenthal
Independent Fed's Inflation Focus Could Thwart AI Takeover
SocialApr 24, 2026

Independent Fed's Inflation Focus Could Thwart AI Takeover

Has anyone made the argument yet that an independent Fed, firmly focused on its inflation target, will be one of our most important bulwarks against complete AI takeover? As long as policy prioritizes stable *consumer* prices, that puts a brake resource...

By Joe Weisenthal
User Seeks GPT‑5.5 API Release for Chess Benchmark
SocialApr 23, 2026

User Seeks GPT‑5.5 API Release for Chess Benchmark

When will GPT 5.5 be available via API? I need to see how it performs against other models in my benchmark, where I show it random chess positions and ask it to guess the last move that had been played....

By Joe Weisenthal
Trust Andrey's Books—Read His Latest Release
SocialApr 23, 2026

Trust Andrey's Books—Read His Latest Release

I typically don’t like to recommend anything until I’ve read it. But all of @Andrey4Mir’s past books are great, and I’m sure this one will be. I plan to read it and you should too.

By Joe Weisenthal
Search Bars Still Matter in an AI-Driven Future
SocialApr 23, 2026

Search Bars Still Matter in an AI-Driven Future

NEW ODD LOTS: @tracyalloway and I talk Google’s VP of search Liz Reid about the future of the good old fashioned search bar in an AI-dominated world https://t.co/XvWg2rZbDG

By Joe Weisenthal
Private Market Hype Debunked: Boring Insulation Acquisition
SocialApr 23, 2026

Private Market Hype Debunked: Boring Insulation Acquisition

All the stuff about how the only good returns are happening in private markets is straight up disinfo from grifters. Here is a chart of the insulation co that $QXO is buying. Literally just insulation. So many charts out there...

By Joe Weisenthal
Postman’s Shift: From Tech Embrace to Cultural Counterbalance
SocialApr 22, 2026

Postman’s Shift: From Tech Embrace to Cultural Counterbalance

Early in his career, Neil Postman wrote a book about how educators needed to get with the times and incorporate technology into the classroom. Then later he totally changed his mind and realized that education needed to provide a thermostatic counterbalance...

By Joe Weisenthal
Testing Pre‑1900 LLM's Ability to Predict Modern Slang
SocialApr 22, 2026

Testing Pre‑1900 LLM's Ability to Predict Modern Slang

This can be tested right now. @status_effects is building an LLM that is only trained on pre-1900 text. So you can just see whether the model is capable of predicting the slang that emerged in the 20th century.

By Joe Weisenthal
ChatGPT Image Generator Repeatedly Invents “Kai” Persona
SocialApr 22, 2026

ChatGPT Image Generator Repeatedly Invents “Kai” Persona

This is kind of funny and weird. So I checked out ChatGPT's new image builder, and gave it the same prompt -- to create a screenshot of an annoying LinkedIn bro's page -- and once again, the AI fabricated...

By Joe Weisenthal
Real-World AI Adoption: How Companies Actually Use It
SocialApr 21, 2026

Real-World AI Adoption: How Companies Actually Use It

This is such a great read from @milkkarten about what companies "using" AI looks like in practice. https://t.co/rqq2gBeDFG https://t.co/L7SWGqlZGN

By Joe Weisenthal
Economics of Crafting a Perfect Pub Menu
SocialApr 21, 2026

Economics of Crafting a Perfect Pub Menu

Guest announcement Very excited that @tracyalloway and I will be joined by @APWChef, co-founder of The Devonshire, at our LIVE London Odd Lots on May 7. Get your tickets here, and watch us talk about the economics of designing a perfect pub...

By Joe Weisenthal
Brad Jacobs Explains QXO's $17B Insulation Acquisition
SocialApr 21, 2026

Brad Jacobs Explains QXO's $17B Insulation Acquisition

Brad Jacobs dropped by Odd Lots to talk with me and @tracyalloway about why his company $QXO is buying an insulation company for $17 billion. https://t.co/a9rTLDb9rs

By Joe Weisenthal
Willie Nelson’s Decade of Songs: High‑life Themes Continue
SocialApr 20, 2026

Willie Nelson’s Decade of Songs: High‑life Themes Continue

Every new Willie Nelson single for the last ten years has been about getting high or not having much time left on earth. Today’s is about the former. https://t.co/b04d9BSPxr

By Joe Weisenthal
Inside Independent Oil Business: Costs, Price Sweet Spot, Ladnman Reality
SocialApr 20, 2026

Inside Independent Oil Business: Costs, Price Sweet Spot, Ladnman Reality

NEW ODD LOTS: The truth about running an independent oil and gas biz @tracyalloway and I talk to @Jack_McClendon, CEO of Siena Natural Resources, about rising costs, the sweet spot for oil prices, and how realistic the show Ladnman really is. https://t.co/Wcl305efUH

By Joe Weisenthal