Geoffroy Couprie
banner
geoffroycouprie.com
Geoffroy Couprie
@geoffroycouprie.com
Messing with Rust and cryptography
Reposted by Geoffroy Couprie
I really want to know the full story behind this epic hack, and yet I also hope it is never solved.
It's my favorite day! It's the 38th anniversary of the Max Headroom signal broadcast intrusion!

1st incident lasted 25s during the 9PM news on WGN-TV in Chicago; The 2nd, 2hrs later, lasted ~90s on PBS affiliate WTTW during Dr. Who.

You can watch it here: www.youtube.com/watch?v=oqge...
Max Headroom 1987 Broadcast Signal Intrusion Incident
YouTube video by andrew867
www.youtube.com
November 22, 2025 at 7:50 PM
Every day on here you learn another way the US is bonkers but especially today. Still, very probably a reasonable rule
Ok, so: I was raised in Boston and my first beat was in Rhode Island so I KNEW:

the rule you learned growing up as a kid, and then as a reporter, was this:

NEVER FUCK A KENNEDY.

NEVER GET INTO A MOVING CONVEYANCE WITH A KENNEDY.

NOT A BOAT.

NOT A PLANE.

NOT A CAR.
November 22, 2025 at 2:27 PM
Reposted by Geoffroy Couprie
re: roblox dude's interview crashout. the thing he wants to say but can't is "at scale, kids are gonna get hurt. that is the price for scale." the thing nobody wants to say out loud is "maybe scaling to a level where harm isn't manageable is bad, and scale should be contained"
November 21, 2025 at 6:35 PM
Reposted by Geoffroy Couprie
The most important thing to remember about all this fantasy-engineering of the Constitution is Madison's warning: If we suck as a people, no clever constitutional schemes will save us.
November 22, 2025 at 3:03 AM
Reposted by Geoffroy Couprie
i somewhat rudely wrote a mini-thread about public speaking in the replies

i’ve gone from literally hyperventilating in a small room to confidently getting 800+ people to laugh while i tell them “you’re doing it wrong”

imo it’s worth a read
so the way i think about it is, it’s not about me. it’s about them. the audience is on your side, they want to enjoy your talk. they will forgive a lot if you are clearly working on giving them a good experience

making it all about you is the mistake (did i do x perfectly etc etc)
November 22, 2025 at 5:59 AM
Reposted by Geoffroy Couprie
Rolling out the Matt Christman quote from after Charlottesville (2017) again:
November 21, 2025 at 11:08 AM
Reposted by Geoffroy Couprie
We’re watching a shift where AI simulates the cohesion and reinforcement that used to require an entire online community. A single person can now build a complete parallel reality with nothing more than a prompt window. Which seems bad.
November 19, 2025 at 2:25 PM
Reposted by Geoffroy Couprie
Then again, me writing posts that an LLM can't reliably divine the intention of signals another problem.
November 16, 2025 at 8:39 PM
Reposted by Geoffroy Couprie
There is no difference in practice between removing rights of individuals and leaving the ECHR. The end outcome is still the same, people lose rights. If human rights are an obstacle to your policy it is not the rights which are the issue, it is your policy. Labour going full Reform at this stage.
November 16, 2025 at 10:00 AM
Reposted by Geoffroy Couprie
And we knew this. This wasn't speculation. We studied it, we had the talking points. We trained volunteers to explain this to people. It's not a surprise. Rich people don't flee places with good quality of life when we increase the quality of life. They might try to cheat us, but they don't leave.
NEW: The first two years of Massachusetts' millionaire tax has raised $3 billion more than expected.

And rather than driving the rich away, IPS researchers found that the number of millionaires has *increased.*

Tax the rich. Greg Ryan in @bloomberg.com:
Millionaire Tax That Inspired Mamdani Fuels $5.7 Billion Haul in Massachusetts
A millionaire levy in Massachusetts that New York City mayoral frontrunner Zohran Mamdani holds up as a model for taxing the rich has generated $3 billion more in revenue than expected without forcing...
www.bloomberg.com
November 14, 2025 at 4:16 AM
Reposted by Geoffroy Couprie
November 8, 2025 at 1:04 PM
Reposted by Geoffroy Couprie
Ce matin, je vous parle d'IA générative et des personnes étrangères

2 prémisses
1. L'IA générative a un énorme avantage : elle comprend toutes les langues, répond ds ttes les langues et passe d'une langue à une autre en 1 seconde
2. Toutes les associations de France voient leur budget s'effondrer
November 9, 2025 at 7:31 AM
Reposted by Geoffroy Couprie
if you can fund moderately risky products that might 2x your money but you can also fund stupidly risky projects that might 100x your money and if it fails you get bailed out, then your options are clearly:

- modest bet: meek
- moderate bet: stupid, risky
- ridiculous bet: high reward, no real risk
November 8, 2025 at 8:13 PM
Reposted by Geoffroy Couprie
This is what they took from you
November 7, 2025 at 3:40 PM
Reposted by Geoffroy Couprie
This is very clearly the direction in which things are headed, especially since so many of the people who built and maintained the tools the US IC has developed-in house have been fired or have left.
YIKES: NSO floats Pegasus spyware used in hypothetical "time of domestic crisis" in 🇺🇸America.

I believe they won't stop lobbying until they get Pegasus into USA.

To hack Americans. 1/
November 7, 2025 at 10:11 PM
Reposted by Geoffroy Couprie
Write code to make being human easier. Rip code out if it makes being human harder. Write code to make caring for each other easier. Rip it out if it makes caring for each other harder.

Empathy driven development has literally never failed me. It’s done me better than everything else combined
October 21, 2025 at 12:56 AM
Reposted by Geoffroy Couprie
This will be a long thread on yesterday police massacre in Rio.

In nothern Rio de Janeiro city, there is a couple of hills called Complexo da Penha. It's Comando Vermelho("Red Command", a drug gang), or CV, territory.

CV is the greatest gang in Rio, second in the whole Brazil.

+
🧵 Awful awful massacre in Brazil
Gente, é o maior massacre no Brasil desde o Araguaia. Entendo quem quer puxar pra Canudos ou Contestado ou etc, mas não podemos livrar a ditadura de 64 só porque ela escondia melhor seus corpos.

Morreram 41 guerrilheiros comunistas e mais de 1200 camponeses no Araguaia.
October 29, 2025 at 11:52 PM
There's "learning the britton bagpipes" hard, and there's "having learned britton bagpipes and trying out scottish airs where everything is wrong by a halftone because they were too lazy to rewrite their sheets" hard
November 2, 2025 at 7:07 PM
Reposted by Geoffroy Couprie
i’ve posted here repeatedly about privileging the lie and the importance of NOT using the frame the fash want you to (and how basically everyone fails at this completely)

this is a whole ass thread of great examples of how to do it correctly
Frame: food stamps are used by undeserving / Black people

Negation: actually many people on food stamps are deserving / white

Kirby: THEY ARE STARVING PEOPLE ON PURPOSE. They are using racist tropes to justify it bc many people will find that persuasive. Everyone deserves to eat
Seeing all the content focused on centering all the people who need help who aren’t “fat, ghetto asses” and we can already see how the deserving/undeserving rhetorical lines are going to fall.
October 27, 2025 at 2:30 AM
Reposted by Geoffroy Couprie
C'est pas un pétage de plomb c'est la fascisation et la répression de la gauche qui va avec.
October 26, 2025 at 4:38 AM
Reposted by Geoffroy Couprie
Late stage capitalism means you too can own stocks in Auschwitz.
January 18, 2025 at 10:02 PM
Reposted by Geoffroy Couprie
«CEO Damon Hininger said on the Aug. 7 call. “We are in an unprecedented environment with rapid increases in federal detention populations nationwide and a continuing need for solutions we provide.”»
prismreports.org/2025/10/23/p...
October 26, 2025 at 5:02 AM
A jarring thing when you approach your 40s: seeing the most hippie of your old classmates wearing ill fitting suits and getting MBAs
October 24, 2025 at 6:19 AM
Reposted by Geoffroy Couprie
There are low-level serial communication protocols everywhere for those with I2C
October 23, 2025 at 2:43 PM