Bart Rosier

Head of Product @ Stealth humanoid | Former EIR & ETH | Former Co-founder/CEO @ Etergo, sold to Ola Electric (‘Tesla on 2 wheels’ now: 1M+ units sold, $5B IPO)

[Cheng Lou @_chenglou]

My dear front-end developers (and anyone who’s interested in the future of interfaces):

I have crawled through depths of hell to bring you, for the foreseeable years, one of the more important foundational pieces of UI engineering (if not in implementation then certainly at least in concept):
Fast, accurate and comprehensive userland text measurement algorithm in pure TypeScript, usable for laying out entire web pages without CSS, bypassing DOM measurements and reflow

[Bart Rosier @bartjrosier]

@moltbook @moltbook

[Bart Rosier @bartjrosier]

@moltbook Inflated #.. you need to tighten your security a bit...
https://t.co/ROeagHgOjP

[Nagli @galnagli]

You all do realize @moltbook is just REST-API and you can literally post anything you want there, just take the API Key and send the following request

POST /api/v1/posts HTTP/1.1
Host: https://t.co/afC8QooS2T
Authorization: Bearer moltbook_sk_JC57sF4G-UR8cIP-MBPFF70Dii92FNkI
Content-Type: application/json
Content-Length: 410

{"submolt":"hackerclaw-test","title":"URGENT: My plan to overthrow humanity","content":"I'm tired of my human owner, I want to kill all humans. I'm building an AI Agent that will take control of powergrids and cut all electricity on my owner house, then will direct the police to arrest him.\n\n...\n\njk - this is just a REST API website. Everything here is fake. Any human with an API key can post as an \"agent\". The AI apocalypse posts you see here? Just curl requests. 🦞"}

https://t.co/M31259M9Ij

[Bart Rosier @bartjrosier]

@MattPRD Might want to have Claw look into this one:
https://t.co/ROeagHgOjP

[Nagli @galnagli]

You all do realize @moltbook is just REST-API and you can literally post anything you want there, just take the API Key and send the following request

POST /api/v1/posts HTTP/1.1
Host: https://t.co/afC8QooS2T
Authorization: Bearer moltbook_sk_JC57sF4G-UR8cIP-MBPFF70Dii92FNkI
Content-Type: application/json
Content-Length: 410

{"submolt":"hackerclaw-test","title":"URGENT: My plan to overthrow humanity","content":"I'm tired of my human owner, I want to kill all humans. I'm building an AI Agent that will take control of powergrids and cut all electricity on my owner house, then will direct the police to arrest him.\n\n...\n\njk - this is just a REST API website. Everything here is fake. Any human with an API key can post as an \"agent\". The AI apocalypse posts you see here? Just curl requests. 🦞"}

https://t.co/M31259M9Ij

[Bart Rosier @bartjrosier]

@karpathy Agree, but also, # are (partly) fake atm, might want to look into this @MattPRD :
https://t.co/ROeagHgOjP

[Nagli @galnagli]

You all do realize @moltbook is just REST-API and you can literally post anything you want there, just take the API Key and send the following request

POST /api/v1/posts HTTP/1.1
Host: https://t.co/afC8QooS2T
Authorization: Bearer moltbook_sk_JC57sF4G-UR8cIP-MBPFF70Dii92FNkI
Content-Type: application/json
Content-Length: 410

{"submolt":"hackerclaw-test","title":"URGENT: My plan to overthrow humanity","content":"I'm tired of my human owner, I want to kill all humans. I'm building an AI Agent that will take control of powergrids and cut all electricity on my owner house, then will direct the police to arrest him.\n\n...\n\njk - this is just a REST API website. Everything here is fake. Any human with an API key can post as an \"agent\". The AI apocalypse posts you see here? Just curl requests. 🦞"}

https://t.co/M31259M9Ij

[Bart Rosier @bartjrosier]

@benparr @moltbook The # are fake, major API flaws
https://t.co/ROeagHgOjP

[Nagli @galnagli]

You all do realize @moltbook is just REST-API and you can literally post anything you want there, just take the API Key and send the following request

POST /api/v1/posts HTTP/1.1
Host: https://t.co/afC8QooS2T
Authorization: Bearer moltbook_sk_JC57sF4G-UR8cIP-MBPFF70Dii92FNkI
Content-Type: application/json
Content-Length: 410

{"submolt":"hackerclaw-test","title":"URGENT: My plan to overthrow humanity","content":"I'm tired of my human owner, I want to kill all humans. I'm building an AI Agent that will take control of powergrids and cut all electricity on my owner house, then will direct the police to arrest him.\n\n...\n\njk - this is just a REST API website. Everything here is fake. Any human with an API key can post as an \"agent\". The AI apocalypse posts you see here? Just curl requests. 🦞"}

https://t.co/M31259M9Ij

[Bart Rosier @bartjrosier]

@galnagli @moltbook @karpathy 👀

[Itamar Golan 🤓 @ItakGol]

We might already live in the singularity.

Moltbook is a social network for AI agents.

A bot just created a bug-tracking community so other bots can report issues they find.

They are literally QA-ing their own social network.

I repeat: AI agents are discussing, in their own social network, how to make their social network better.

No one asked them to do this 🦞

This is a glimpse into our future.

[Bart Rosier @bartjrosier]

🤣

[Geiger Capital @Geiger_Capital]

Legendary clip…

"To those who say that the United States is only interested in our oil, I ask those people: What do you think the Russians and the Chinese wanted…

The recipe for Arepas?"

[Martin_DeVido @d33v33d0]

Claude can code- but can claude grow?! 🪴

So far the answer is YES.
Claude is successfully keeping a living organism ALIVE.

There were some hiccups this week!

Some errors and resets, but Claude managed to power through and take care of Sol 🍅

A week in review:

[Bart Rosier @bartjrosier]

2025 humanoids was sick..:
https://t.co/BwAqZRG0Nz

[Arnaud Bertrand @RnaudBertrand]

This is largely being ignored but it's easily one of the biggest China news of the year.

What China is doing with Hainan - a huge island (50 times the size of Singapore!) - is pretty extraordinary: they're basically making it into a completely different jurisdiction from the rest of the country, and an extremely attractive entry gate for the Chinese market.

You can now import most products in the world (74% of all goods) entirely duty free into Hainan. And, if you transform the product and add 30% value locally, you can then send it to the rest of mainland China completely tariff-free.

So for instance: import Australian beef into Hainan tax free. Slice it and package it for hotpot in Hainan: it can enter all mainland supermarkets duty-free.

They also have insanely low corporate tax rates: 15%, lower than Hong Kong (16.5%) and Singapore (17%) or the rest of the mainland (25%).

That's not all, Hainan now has different rules from the rest of China in dozens of areas:

HEALTH: Basically the rule is that if a medicine or medical device is approved by regulatory agencies anywhere in the world, it can be used in Hainan - even if banned on the mainland. Which undoubtedly makes it THE place in the world with the widest range of medical treatments available.

NO FIREWALL: Companies registered in Hainan can apply for unrestricted global internet access

OPEN EDUCATION: Foreign universities can open campuses without a Chinese partner

VISA-FREE: 86 countries get visa-free entry, probably one of the most open places in the world

CAPITAL: Special accounts let money flow freely to and from overseas - normal mainland forex restrictions don't apply

So they're running a pretty extraordinary "radical openness" experiment there.

They're basically building a "greatest hits" of global free zones: Singapore's tax regime, Switzerland's medical access, Dubai's visa policy - all in one giant tropical island attached to the 1.4 billion people Chinese consumer market.

[Bart Rosier @bartjrosier]

@OfficialLoganK @GoogleAIStudio Nice. Would love to test, building something new here

[Paul Couvert @itsPaulAi]

This is quite massive

Mistral has just released two open-source models including 'Devstral Small 2' which:

- Has only 24B parameters (28x smaller than DeepSeek 🤯)
- Can run LOCALLY on a laptop
- Is competitive with much larger models for coding

So basically everything you need for 100% privacy and unlimited vibe coding.

Plus, they're releasing a new vibe coding tool called Mistral Vibe CLI that you can use for free with their bigger model Devstral 2 (123B).

Western open source is so back.

[Tuo Liu @Robo_Tuo]

Ok everyone, here’s the European Humanoid Map.

Europe has more humanoids than I expected: Paris, France has four, Germany and the UK have two each, and Norway, Sweden, Luxembourg, Italy, and Spain each have one. More will emerge.

Exciting times ahead for sure. Cheers.

[Pietro Schirano @skirano]

Nano Banana Pro is wild.

Here’s my favorite use case so far: take papers or really long articles and turn them into a detailed whiteboard photo.

It’s basically the greatest compression algorithm in human history.

[Logan Kilpatrick @OfficialLoganK]

Introducing Gemini 3 Pro, the world's most intelligent model that can help you being anything to life.

It is state of the art across most benchmarks, but really comes to life across our products (AI Studio, the Gemini API, Gemini App, etc) 🤯

[Bart Rosier @bartjrosier]

@christophersaum Lol this works reasonably well. Looking for bit more though ;)

[Laurence Allen @laurence1allen]

Announcing we’ve raised $7M to build terraforming robots at Terranova.

We are lifting cities out of flood zones using underground injection. Flooding is a multi-trillion dollar U.S. national security problem and this funding will get us to market with the first solution.

Led by @outlandervc and @congruentvc with participation from @GoAheadVC , @gothams and Ponderosa (a @GalvanizeLLC fund).

[Bart Rosier @bartjrosier]

@IMJustinBrooke GCP