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Timothy B. Lee

@binarybits.bsky.social
3.7K followers 290 following 280 posts

Reporting on AI and the future of the economy. Computer science masters degree from Princeton. Subscribe to my AI newsletter: www.understandingai.org

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Timothy B. Lee @binarybits.bsky.social · 29/08/2026
Sure!
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NonZero @nonzeronews.bsky.social · 13/05/2026
Is the AI Takeoff Starting? | Timothy B. Lee (@binarybits.bsky.social), author of the Understanding AI newsletter and host of the AI Summer podcast, joins @robertwrighter.bsky.social to discuss whether AI is a “normal technology” or something much, much more.
youtu.be
Is the AI Takeoff Starting? | Robert Wright & Timothy B. Lee
YouTube video by Nonzero
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Robert Wright @robertwrighter.bsky.social · 13/05/2026
Really enjoyed this conversation with @binarybits.bsky.social.
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Kyle Serikawa @kyleserikawa.bsky.social · 10/05/2026
This piece ( open.substack.com/pub/understa...) by @binarybits.bsky.social made me think of something kind of similar @doctorow.pluralistic.net shared a little while ago about process knowledge. pluralistic.net/2026/04/08/p.... Both asking about knowledge that's less articulated but still valuable.
open.substack.com
I don’t think we are close to “AI scientists”
Today's AI agents are not designed to extract deep insights from new observations.
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Timothy B. Lee @binarybits.bsky.social · 22/03/2026
Wait what?
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Alan Rozenshtein @alanrozenshtein.com · 06/03/2026
Banger of a crossover episode today between @scaling_laws and "AI Summer" with @deanwb.bsky.social and @binarybits.bsky.social on the Anthropic/OpenAI/Pentagon situation (note that we recorded this on Wed. before DOD designated Anthropic a supply chain risk). podcasts.apple.com/us/podcast/s...
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Timothy B. Lee @binarybits.bsky.social · 02/03/2026
I love how she's still trying to make TESCREAL a thing.
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Timothy B. Lee @binarybits.bsky.social · 04/02/2026
That really sucks. :-(
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Tim Duffy @timfduffy.com · 22/07/2025
I'm a fan of this @binarybits.bsky.social piece that points out the incredibly simple and dumb error made by shadowstats. There's definitely some wiggle room for how you calculate inflation but you can't be significantly biased in the long term without it being obvious.
fullstackeconomics.com
No, the real inflation rate isn’t 15 percent
Jordan Peterson and Jack Dorsey are touting a bogus theory about the inflation rate.
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Stephan Geering @stephangeering.bsky.social · 25/07/2025
Great @binarybits.bsky.social piece with overview of and background of White House AI Action Plan www.understandingai.org/p/donald-tru...
understandingai.org
Donald Trump just laid out his vision for AI policy
The president wants to help American AI companies compete with their Chinese rivals.
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Joey Politano🏳️‍🌈 @josephpolitano.bsky.social · 17/07/2025
The American Time Use Survey came out recently, giving the most detailed look at how the country spends its days, so here's a quick thread 1st, the share of Americans reading for personal interest on an average day has fallen to the lowest level on record, down 10% from 2003🧵
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Satadru Pramanik @satmandu.bsky.social · 08/07/2025
This is an excellent explainer by @binarybits.bsky.social . arstechnica.com/ai/2025/07/h...
arstechnica.com
How a big shift in training LLMs led to a capability explosion
Reinforcement learning, explained with a minimum of math and jargon.
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Timothy B. Lee @binarybits.bsky.social · 03/07/2025
Do you think that is influencing Netanyahu’s behavior today?
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Timothy B. Lee @binarybits.bsky.social · 01/07/2025
Have you tried o3?
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NonZero @nonzeronews.bsky.social · 26/06/2025
The Truth about Sam Altman | @robertwrighter.bsky.social and Timothy B. Lee (@binarybits.bsky.social), author of the Understanding AI newsletter, discuss what two new biographies reveal about the OpenAI CEO.
youtu.be
The Truth about Sam Altman | Robert Wright & Timothy B. Lee
YouTube video by Nonzero
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Tom Lee @tjl.bsky.social · 25/06/2025
Fantastic @binarybits.bsky.social writeup of the Alsup ruling in Anthropic’s case open.substack.com/pub/understa... But aside from AI training, yet another reminder of the power of analog media. This excerpt is tragic: Alsup’s right about books. But this is exactly how the digital economy works.
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Joey Politano🏳️‍🌈 @josephpolitano.bsky.social · 12/06/2025
No urbanist has successfully kept more vehicles off the road than radical degrowth war-on-cars advocate Donald J Trump
A graph showing a massive drop in US car imports as Donald Trump imposes tariffs on US motor vehicles
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Timothy B. Lee @binarybits.bsky.social · 07/06/2025
On the flip side, progressive cities like Washington DC have put in a ton of traffic calming measures over the last 10 or 20 years.
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Timothy B. Lee @binarybits.bsky.social · 06/06/2025
There weren’t cars in the 1980s?
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Chris Hayes @chrislhayes.bsky.social · 05/06/2025
Apropos of nothing I feel like one of the most important things to help your kids develop is an ability to self-regulate.
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Timothy B. Lee @binarybits.bsky.social · 05/06/2025
Hey @niedermeyer.online is this going to mean no more Tesla takedown protests? Or are they going to become pro-Elon rallies?
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Timothy B. Lee @binarybits.bsky.social · 31/05/2025
There are a ton of people on the internet who don’t understand the difference between describing something and defending it. They think that if you write something about Trump and don’t explicitly add “and that’s bad” every few sentences you are a Trump apologist. These people are morons.
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Timothy B. Lee @binarybits.bsky.social · 28/05/2025
Gotta save those crucial law enforcement jobs.
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Timothy B. Lee @binarybits.bsky.social · 12/05/2025
I don’t know if any studies about this.
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Timothy B. Lee @binarybits.bsky.social · 06/04/2025
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Timothy B. Lee @binarybits.bsky.social · 05/04/2025
Groceries stores are famous for their fat profit margins.
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Timothy B. Lee @binarybits.bsky.social · 03/04/2025
Where does he say he is surprised?
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Timothy B. Lee @binarybits.bsky.social · 03/04/2025
Yes.
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Timothy B. Lee @binarybits.bsky.social · 31/03/2025
I hate it.
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Timothy B. Lee @binarybits.bsky.social · 30/03/2025
When fertility is below replacement there are fewer opportunities for young people and it worsens the finances of programs like social security and Medicare.
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Timothy B. Lee @binarybits.bsky.social · 29/03/2025
People are betting that FSD and maybe Optimus will give Tesla a far more valuable business than a conventional car company. If that proves wrong (and it probably will imo) the price will crash.
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Timothy B. Lee @binarybits.bsky.social · 27/03/2025
That tilda is important! I don’t believe “fully automating” is a coherent concept. There are only degrees of automation.
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Timothy B. Lee @binarybits.bsky.social · 27/03/2025
I feel like this has been happening for several years now? A lot of ai training data is generated by LLMs now.
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Tim Duffy @timfduffy.com · 26/03/2025
Great article on Waymo safety by @binarybits.bsky.social, who has IMO the best reporting on self-driving cars out there
understandingai.org
Waymo has had dozens of crashes—almost all were a human driver's fault
Human drivers keep crashing into Waymos that aren't even moving.
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Timothy B. Lee @binarybits.bsky.social · 27/03/2025
Do you think Waymo does a worse job here than uber and Lyft drivers?
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Timothy B. Lee @binarybits.bsky.social · 19/03/2025
I read that nvidia deal as mainly just a decision to use nvidia chips in whatever adas thing they build. Nvidia may help in other ways but i doubt they have worked those details out.
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Timothy B. Lee @binarybits.bsky.social · 19/03/2025
But yeah the main takeaway is that they are not spinning up something new so much as trying to find a lower cost way to get some value out of their remaining cruise workers and associated IP.
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Timothy B. Lee @binarybits.bsky.social · 19/03/2025
GM has no clue what they are doing. Cruise was too expensive so they shut it down and laid off a bunch of the workers. Now they are trying to salvage what’s left in a way that reduces their burn rate.
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Dan Keshet @dankeshet.bsky.social · 16/03/2025
Interesting look at the emergency safety regulations that may hamper rollout of the promised Dallas to Houston automated trucking trial from @binarybits.bsky.social.
open.substack.com
Driverless trucks are coming and unions aren’t happy about it
Will Trump side with driverless trucking startups or the labor movement?
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Timothy B. Lee @binarybits.bsky.social · 14/03/2025
My brother is hiring!
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Benjamin Riley @benjaminjriley.bsky.social · 09/03/2025
@binarybits.bsky.social is doubtful that scaling up so-called reasoning AI models will "achieve human-level intelligence" given this "probably has more than two dimensions, and mastering all of them will probably require a few more conceptual breakthroughs." open.substack.com/pub/understa...
open.substack.com
OpenAI just released GPT-5—it just didn’t call it that
OpenAI's GPT-4.5 demonstrates the power and limits of pretrained models.
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Timothy B. Lee @binarybits.bsky.social · 05/03/2025
What do you mean?
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Timothy B. Lee @binarybits.bsky.social · 05/03/2025
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Kevin Markham @dataschool.io · 04/03/2025
19 professionals (in a variety of fields) evaluated OpenAI's Deep Research vs Google's Deep Research. OpenAI was the clear winner 🏆 Neat study by @binarybits.bsky.social, read more here: www.understandingai.org/p/these-expe...
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Timothy B. Lee @binarybits.bsky.social · 02/03/2025
I guess that might be about to end. 😕
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Timothy B. Lee @binarybits.bsky.social · 02/03/2025
That data is based on Phoenix as well as sf. Nhtsa has national reporting now.
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Timothy B. Lee @binarybits.bsky.social · 27/02/2025
I think there is a lot of buzz about deep research as well. But hard to say.
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Timothy B. Lee @binarybits.bsky.social · 27/02/2025
Same. New signups have been about 3x normal. I think it might be ai-specific?
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Andrew Lee @startupandrew.bsky.social · 27/02/2025
I was a guest on the AI Summer podcast the other day. I go into some detail about how the Shortwave AI agent works today, how we got here, and what's next. Check it out: www.aisummer.org/p/andrew-lee... Thanks @binarybits.bsky.social and Dean Ball for hosting me!
aisummer.org
Andrew Lee on running an AI email startup
Tim's brother goes deep on the practicalities of building on top of fast-changing AI models.
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