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Rafael Ferreira

@rff

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Latest posts by Rafael Ferreira @rff

Wait for them to calm down -> They're not calming down

Wait for them to calm down -> They're not calming down

US strategic analysis of Iran:

07.03.2026 17:19 👍 940 🔁 153 💬 5 📌 1
Caitlin KALINOWSKI over X

I resigned from OpenAl. I care deeply about the Robotics team and the work we built together.
This wasn't an easy call. Al has an important role in national security. But surveillance of Americans without judicial oversight and lethal autonomy without human authorization are lines that deserved more deliberation than they got. This was about principle, not people. I have deep respect for Sam and the team, and I'm proud of what we built together.

Caitlin KALINOWSKI over X I resigned from OpenAl. I care deeply about the Robotics team and the work we built together. This wasn't an easy call. Al has an important role in national security. But surveillance of Americans without judicial oversight and lethal autonomy without human authorization are lines that deserved more deliberation than they got. This was about principle, not people. I have deep respect for Sam and the team, and I'm proud of what we built together.

OpenAI head of robotics just resigned over company deal with the Pentagon saying…

“Surveillance of Americans without judicial oversight and lethal autonomy without human authorization are lines that deserved more deliberation than they got”

07.03.2026 19:05 👍 4177 🔁 1705 💬 88 📌 138

I lack the words to capture it, but ... it's just endlessly remarkable to me that so many people in our society have chosen trans kis -- TRANS KIDS, the smallest, least significant, most vulnerable demographic slice you could possibly pick -- as a repository for all their fears & insecurities.

06.03.2026 19:57 👍 2768 🔁 663 💬 69 📌 46

It's funny communicating with coworkers when we're both using AI to rewrite the content. Definitely a "my lawyer will talk to your lawyer" vibe.

I guess at some point we can just have our AI agents argue it out and wait for the conclusion.

06.03.2026 23:37 👍 44 🔁 1 💬 7 📌 0
screenshot of the one-pager version of the servo readiness report

screenshot of the one-pager version of the servo readiness report

How do we get to more than just three web engines owned by three US companies?

It's a gargantuan question, with no easy or right answer.

I've put together a draft report, thinking about it through a very specific approach - please enjoy:

Servo Readiness Report

webtransitions.org/servo-readin...

06.03.2026 14:35 👍 57 🔁 25 💬 4 📌 1
Video thumbnail

Cool to see the new Rivr robot. They were prototyping based off of Swiss mile dogs before, much more similar to the Unitree dogs we have seen so much of. But now they have custom hardware which seems to make much more sense for package delivery.

07.03.2026 13:37 👍 25 🔁 3 💬 0 📌 2

"We can be as shitty as we want but you have to treat us fairly, because you said you care about fairness."

They are all 12yo boys.

06.03.2026 19:48 👍 346 🔁 51 💬 11 📌 1

having used claude extensively for the past couple of months, i think there is still a lot of value to understanding your code and steering it intentionally. the amount of incidental complexity claude accumulates otherwise (which mostly results in bugs that it can't ever fix reliably) is staggering.

07.03.2026 03:00 👍 529 🔁 61 💬 26 📌 13

Whew, economic anxiety must be real bad down there!

05.03.2026 05:16 👍 241 🔁 27 💬 0 📌 1

> git pull
Already up to date.

> git push
Everything up-to-date

I wish I hadn't noticed that these were formatted differently. I hope I can forget before it destroys me

05.03.2026 05:28 👍 141 🔁 14 💬 11 📌 1

This is one reason I think issue polling is a terrible way to organize political campaigns

03.03.2026 15:21 👍 368 🔁 62 💬 20 📌 3

Feel like my professional interests of IR, law, and computers are all constantly trying to outcompete each other in "everything you know is now turned upside down"

03.03.2026 07:26 👍 198 🔁 11 💬 6 📌 3

a detail you probably didn't know: no where in any #curl documentation do we use the word "very". It is a banned word enforced by a CI check. This rule encourages us to rewrite and instead use more appropriate words. Makes us write better English.

02.03.2026 21:47 👍 21 🔁 5 💬 2 📌 0
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The world's largest offshore solar farm in Shandong

02.03.2026 15:53 👍 44 🔁 6 💬 6 📌 2

The onion at the top of their game

02.03.2026 19:21 👍 2 🔁 0 💬 0 📌 0
Preview
Anyone Else Have Those Weird Dreams Where Sobbing Future Generations Beg You To Change Course? The human subconscious is such an interesting thing. No matter how much you think you’ve got it figured out, it’ll always spit out the most random stuff. Take me, for example. After coming home from a...

Commentary: Anyone Else Have Those Weird Dreams Where Sobbing Future Generations Beg You To Change Course?

02.03.2026 18:10 👍 7659 🔁 1423 💬 89 📌 62
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You cannot talk like this about any other minority in America.

And if it was any other president’s adviser who said something like this about any other minority, it’d be the instant end of their presidency.

02.03.2026 07:54 👍 23873 🔁 5954 💬 1730 📌 632

Tbh, one would only be confused when talking about geographical concepts (like America’s rivers or America’s population) but when referring to people I think everyone understands it’s most likely US citizens.

02.03.2026 11:39 👍 1 🔁 1 💬 0 📌 0
Preview
To work or not to work Can nations not work hard and continue to prosper?

My today's Substack
To work or not to work
Can nations not work hard and continue to prosper?
branko2f7.substack.com/p/to-work-or...

28.02.2026 16:29 👍 13 🔁 6 💬 2 📌 7
Post

See new posts
Conversation
Laura Rozen
@lrozen
·
2h
From US admin official background briefing recording listening to, seriously question if US negotiators understood what Iranians were proposing. One official keeps saying acronym for “IAEA” wrong.
They seem astonished Iran would not agree to the US supplying them nuclear fuel
Laura Rozen
@lrozen
·
2h
They took as suspicious proposals that Iran saw as concessionary.
Laura Rozen
@lrozen
·
2h
Explains why Oman FM tried to come to DC to explain what US negotiators may not have fully understood
Laura Rozen
@lrozen
Am not saying what Iran proposed would have been enough, I dont know, but it seems US negotiators did not have the expert guidance to understand it correctly

Post See new posts Conversation Laura Rozen @lrozen · 2h From US admin official background briefing recording listening to, seriously question if US negotiators understood what Iranians were proposing. One official keeps saying acronym for “IAEA” wrong. They seem astonished Iran would not agree to the US supplying them nuclear fuel Laura Rozen @lrozen · 2h They took as suspicious proposals that Iran saw as concessionary. Laura Rozen @lrozen · 2h Explains why Oman FM tried to come to DC to explain what US negotiators may not have fully understood Laura Rozen @lrozen Am not saying what Iran proposed would have been enough, I dont know, but it seems US negotiators did not have the expert guidance to understand it correctly

On top of all the reporting that this war of aggression was planned well in advance, it seems that the reporting also indicates that the US political leadership are quite literally too stupid to understand basic diplomacy. I mean literally not smart enough.

28.02.2026 23:27 👍 8187 🔁 2457 💬 232 📌 238
Chart of trends in recovered organs from circulatory deaths

Chart of trends in recovered organs from circulatory deaths

The number of organs available for donation has risen massively in the past five years.

It seems to be the result of technological advances in preserving organs after circulatory death.
jamanetwork.com/journals/jam...

01.03.2026 08:30 👍 204 🔁 43 💬 4 📌 4

Come on, bro, just one more war. Just one more war. I promise, bro. Just let us fight one more war and I promise it will fix the region. I promise bro. Just, just let us fight one more war. W-we just need one more war, I promise, bro. It's gonna stabilize everything, everything'll be stable if . . .

28.02.2026 17:57 👍 67 🔁 17 💬 0 📌 2

scrawny 18-year-old about to fall out of an army helicopter over tehran: this is so epic. this is totally sigma, right babe?

AI e-girl operated by a balding intelligence officer in virginia: that's right baby, Iran is totally cringe

10.01.2024 14:09 👍 9795 🔁 2028 💬 53 📌 61

I'd worry more about the extent of civilian casualties a Trump administration that has shown no humanitarian qualms in Yemen and the Caribbean is willing to inflict on Iranian coastal communities in order to keep the Strait of Hormuz open

28.02.2026 16:45 👍 75 🔁 21 💬 3 📌 0
• This is a war of choice, not necessity.
The U.S. and Israel initiated strikes on Iran without a direct, imminent threat. That makes this a discretionary conflict, and history shows wars of choice often come with long, unpredictable tails.

• Escalation is almost guaranteed.
Iran has been preparing for this day since the 12-day war. Retaliation is likely to  take place not just directly, but asymmetrically, potentially igniting multiple fronts at once.

• Regional conflagration is a real possibility.
If Hezbollah fully engages from Lebanon, if militias strike U.S. bases in Iraq and Syria, or if the Houthis escalate in the Red Sea, this stops being a bilateral conflict and becomes a region-wide war stretching across the Middle East

• This is a war of choice, not necessity. The U.S. and Israel initiated strikes on Iran without a direct, imminent threat. That makes this a discretionary conflict, and history shows wars of choice often come with long, unpredictable tails. • Escalation is almost guaranteed. Iran has been preparing for this day since the 12-day war. Retaliation is likely to take place not just directly, but asymmetrically, potentially igniting multiple fronts at once. • Regional conflagration is a real possibility. If Hezbollah fully engages from Lebanon, if militias strike U.S. bases in Iraq and Syria, or if the Houthis escalate in the Red Sea, this stops being a bilateral conflict and becomes a region-wide war stretching across the Middle East

Global economic shockwaves are likely.
Iran sits along the Strait of Hormuz, through which roughly a fifth of the world’s oil supply passes. Even limited disruption could spike energy prices, fuel inflation, and rattle global markets.

• U.S. forces across the region are exposed.
American troops and assets in Iraq, Syria, the Gulf, and at sea are within reach of Iranian missiles and drones. What starts as a targeted strike campaign could quickly put thousands of U.S. personnel at risk. Even @realDonaldTrump admitted that American blood could be spilled.

• Long wars reshape politics at home.
Sustained conflict risks war fatigue, domestic division, and political backlash in the U.S. and Israel — especially if casualties rise or objectives become unclear.

Global economic shockwaves are likely. Iran sits along the Strait of Hormuz, through which roughly a fifth of the world’s oil supply passes. Even limited disruption could spike energy prices, fuel inflation, and rattle global markets. • U.S. forces across the region are exposed. American troops and assets in Iraq, Syria, the Gulf, and at sea are within reach of Iranian missiles and drones. What starts as a targeted strike campaign could quickly put thousands of U.S. personnel at risk. Even @realDonaldTrump admitted that American blood could be spilled. • Long wars reshape politics at home. Sustained conflict risks war fatigue, domestic division, and political backlash in the U.S. and Israel — especially if casualties rise or objectives become unclear.

Senior expert on Iran at @crisisgroup.org Ali Vaez.

28.02.2026 09:30 👍 174 🔁 107 💬 5 📌 4

anthropic is a public benefit corporation created primarily by the extremely ideological rationalists who started to leave OpenAI when it stopped being a nonprofit

28.02.2026 06:19 👍 560 🔁 52 💬 11 📌 5

Some "holy shit" synchronicity for you all:

My former PhD advisor has not hired any grad students for the past several years, for reasons unbeknownst to his former students. I just received this text from a former lab member explaining why. This is a tenured professor at a T10 university.

26.02.2026 21:42 👍 98 🔁 11 💬 7 📌 6
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Ficar feliz hoje

26.02.2026 11:34 👍 754 🔁 140 💬 4 📌 12
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📝 "Hardwood: A New Parser for Apache Parquet"

Today is the day--beyond excited to share the first release of #Hardwood, a new parser for the Apache #Parquet file format, optimized for minimal dependencies and great performance.

👉 www.morling.dev/blog/hardwoo...

26.02.2026 15:44 👍 34 🔁 8 💬 0 📌 3