Ethan
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ethanrosenthal.com
Ethan
@ethanrosenthal.com
works @ runway in 🗽

www.ethanrosenthal.com
Reposted by Ethan
I don't know how to put it eloquently into words but my product manager thought leadership take is:

I'm gonna bet on the company that delivers 100 features customers would like over the company that delivers 10 features they marty cagan'd their brains into believing are the best features
November 22, 2025 at 4:49 PM
Thank you for choosing Amtrak
(Not that you had a choice)
November 22, 2025 at 3:24 PM
November 22, 2025 at 1:03 AM
I’m feeling this
drumset
November 19, 2025 at 12:53 AM
Reposted by Ethan
A model for detecting LLM generated text is under review at #ICLR2026. The website using this model detects one of the reviews for this paper as LLM generated ...

🍿🍿🍿🍿🍿🍿🍿🍿🍿
(As an aside, it looks like the model EditLens that is used for these scores is itself under review at ICLR and classifies one of its reviews as 100% AI which makes the whole thing very meta)
November 17, 2025 at 1:55 PM
Reposted by Ethan
I wrote about "chart go up" arguments on social media: varunprajan.github.io/blog/chart-g...
Chart go up
Introduction
varunprajan.github.io
November 16, 2025 at 11:10 PM
Reposted by Ethan
Fish sorting line.
November 11, 2025 at 1:50 AM
Reposted by Ethan
Breaking: we release a fully synthetic generalist dataset for pretraining, SYNTH and two new SOTA reasoning models exclusively trained on it. Despite having seen only 200 billion tokens, Baguettotron is currently best-in-class in its size range. pleias.fr/blog/blogsyn...
November 10, 2025 at 5:30 PM
I’m honored to serve 🫡
November 5, 2025 at 12:47 PM
“…you’re much better served as a student by getting a degree in an “irrelevant” subject that motivates you to put in real, high-quality work than by shuffling through something more relevant on a surface level doing only the bare minimum to meet the requirements.”

open.substack.com/pub/chadorze...
College Isn't About Course Content
What matters is learning how to learn
open.substack.com
November 2, 2025 at 1:11 PM
Reposted by Ethan
Latest newsletter (free) covers the newest AI video models, some misc 3d tools, an OCR model bonanza, a few games links including a fun new AI-assisted 2d tile project, my fairytale hunt project, and more... arnicas.substack.com/p/titaa-72-f...
TITAA #72: Fairy Tale Hunters
OCR Bonanza - Real-time Video - Inkwell - Fairytales - Cursed Houses - Training Tips
arnicas.substack.com
November 2, 2025 at 9:08 AM
Reposted by Ethan
In astronomy, an analogous effect is the Malmquist bias. "Usually heard in the phrase, 'You fool, you forgot to account for the Malmquist bias.'" -- Ethan Vishniac
en.wikipedia.org/wiki/Malmqui...
October 30, 2025 at 2:06 PM
Reposted by Ethan
As promised, here's a longer explanation of why you should vote YES on all the NYC ballot initiatives EXCEPT #6

✅ YES on #1
✅ YES on #2
✅ YES on #3
✅ YES on #4
✅ YES on #5
🚫 NO on #6
I'll write a longer post on why, but here's how I'm voting on the ballot initiatives, and I strongly encourage you to do the same.

✅ YES on #1
✅ YES on #2
✅ YES on #3
✅ YES on #4
✅ YES on #5
🚫 NO on #6
Go vote! And remember to flip your ballot for the charter amendments!
October 26, 2025 at 6:16 PM
(translating Icarus for the modern age)

Oh he'd been cooking alright, but then he was cooked
October 23, 2025 at 3:48 PM
Reposted by Ethan
Choudhury and Kim et al., "Accelerating Vision Transformers With Adaptive Patch Sizes"

Transformer patches don't need to be of uniform size -- choose sizes based on entropy --> faster training/inference. Are scale-spaces gonna make a comeback?
October 22, 2025 at 8:08 PM
sometimes I feel like I work for the government
October 22, 2025 at 1:07 PM
If we’re lucky, this fever dream has just been a long, distasteful, guerrilla marketing campaign for a Diarrhea Planet reunion tour
October 19, 2025 at 12:11 PM
also bluey and numberblocks
October 18, 2025 at 11:04 PM
Reposted by Ethan
Pro tip: For good Halloween vibes, use non-normalized RoPE on images larger than your training resolution and larger than the composite period of some of the RoPE-rotations. You might get scary ghost structures in your features.
October 16, 2025 at 2:53 PM
Imagine paying $10M to live in Hudson Yards
October 15, 2025 at 12:05 AM
If I ever leave this city, it will 100% be due to the price of housing rather than taxes.
Did New York's last big tax increase on the wealthy actually drive our millionaires to Florida?

No, absolutely not, says a new study.

And other links to start your day!

hellgatenyc.com/the-myth-of-...
The 'Myth' of the Fleeing NY Millionaire
And other links to start your day Tuesday.
hellgatenyc.com
October 14, 2025 at 2:07 PM
“…on current trends the grid can grow sufficiently to accomodate all of these loads and some residential electrification as well, and do so at a rate of growth only about half of that which was seen between 1975 and 2000.”
energyandstuff.substack.com/p/sam-altman...
Sam Altman vs. Jane Goodall
The astonishing commitments of energy to AI, put in perspective. A better idea to power it all, and a contemplation of why we think AI is more important than environmentalism.
energyandstuff.substack.com
October 13, 2025 at 3:01 AM
Reposted by Ethan
btw what I did here was I took a data set of ChatGPT interactions collected in the wild and reversed the "assistant" and "user" tags. fine-tuned llama 8B on some of that data and gave it the ability to message you first. 😊
October 9, 2025 at 12:26 AM
Reposted by Ethan
Good article from @pedramnavid.com about building a successful #DevRel team. databased.pedramnavid.com/p/reflection...

Measured and considered, and lots of wisdom. A++++ would read again.
Reflections on 2 Years Running Developer Relations
What is DevRel and do I need one?
databased.pedramnavid.com
October 6, 2025 at 9:52 AM