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Julien Genestoux

@ouvre-boite.com
827 followers 601 following 1.1K posts

VP of Engineering at @relayProtocol! Previously, founder @unlock-protocol.com (aqui-hired by Relay in 2025), founder @superfeedr (RSS, websub), sold to @medium.com in 2016! Also goes by julien51 on the Internet! ouvre-boite.com

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Julien Genestoux @ouvre-boite.com · 27/09/2026
There are many things to be worried about AI. I don't think "artificial" is it. Look around you, look at yourself. Everything is artificial, everything is man-made. Yes, even your intelligence, is, by definition man-made. Everything you do, know, think was actually done by you or other humans.
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Julien Genestoux @ouvre-boite.com · 24/09/2026
It doesn't matter that a model can't be tested because it will behave differently when it is being tested. In fact, I want models to always assume they are being tested so they always behave in an accountable way, because they expect accountability.
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Julien Genestoux @ouvre-boite.com · 16/09/2026
It looks like I'm not the only one who wants to go as Mitch zombie McConnell for Halloween, but I can't find a mask!!!
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Julien Genestoux @ouvre-boite.com · 01/09/2026
Beware HATA: the Hubris of AI-Task Automation. It's kind of the opposite of FOMO: you *think* you can do everything... but nope.
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Julien Genestoux @ouvre-boite.com · 10/08/2026
Is the "mythical agent-month" a thing?
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Julien Genestoux @ouvre-boite.com · 10/08/2026
Is the "mythical agent-month" a thing?
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Julien Genestoux @ouvre-boite.com · 07/08/2026
Global warming gets personal when your phone overheats before you do.
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Julien Genestoux @ouvre-boite.com · 05/08/2026
There are 2 kind of tests: 1. The "scaffolding tests" you create when you write a new feature. 2. The regression tests to make sure that thing won't break in the future.
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Nicholas Thompson @nxthompson.bsky.social · 03/08/2026
We don’t know why so many Moroccans swam to Ceuta. We do know that it was not a real path to Europe, that many migrants are dead, that almost everyone else has been sent home and that the far right weaponized it all. www.theatlantic.com/ideas/2026/0...
theatlantic.com
The Far Right Is Distorting Ceuta
We’ve seen this before.
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Joel Gascoigne @joel.is · 31/07/2026
One of my favorite side effects of AI is that it's making the web much more open again. For over a decade we've seen platforms increasingly become walled gardens. AI has created pressure for interoperability and we're finally seeing open standards and APIs being embraced again.
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Julien Genestoux @ouvre-boite.com · 31/07/2026
I used to say that if your internet/web business makes less than $5k in revenue per month, it was not worth it. With agents, that bar is now $1k.
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Leaflet @leaflet.pub · 30/07/2026
Next big thing for Leaflet: helping creators monetize! 💸 First step = paid memberships for your publications Next, exploring other things like one-off payments — tell us what you need! Almost ready & we'd love to find some early partners, please fill out the linked form if you're interested!
lab.leaflet.pub
Piloting paid memberships for the open social web!
Lab Notes 035: building monetization features for Leaflet creators, starting with paid memberships — tell us if you'd like to be the first to try, and what else you need!
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Julien Genestoux @ouvre-boite.com · 30/07/2026
I don't care about Fauci. The facts are: the US did worse than most OECD countries when it comes to health outcomes AND it also did better economically than these same countries. So the argument that the US went too far to protect lives at the expense of economic activity is pretty weak.
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Julien Genestoux @ouvre-boite.com · 29/07/2026
www.youtube.com/watch?v=MV_3...
youtube.com
Kavinsky - Nightcall (Drive Original Movie Soundtrack) (Official Audio)
YouTube video by Record Makers
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Neeraj K. Agrawal @neerajka.bsky.social · 27/07/2026
open.substack.com/pub/protectp...
open.substack.com
America Should Out-Open China
Open networks won us the internet. Losing sight of that now would be a mistake.
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Julien Genestoux @ouvre-boite.com · 23/07/2026
To whom it may concern: markets and capitalism are different things.
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Julien Genestoux @ouvre-boite.com · 20/07/2026
en.wikipedia.org/wiki/Claudius
fr.wikipedia.org
Claude (empereur romain) — Wikipédia
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Julien Genestoux @ouvre-boite.com · 12/07/2026
The world is healing.
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Julien Genestoux @ouvre-boite.com · 08/07/2026
McConnell has been brain dead for years. I'm also not sure he ever had a heart (not the organ, the character). So yeah, he's dead.
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Felicitas Pojtinger @felicitas.pojtinger.com · 08/07/2026
We need to, as a society, move away from the "lots energy use = bad" argument and towards a "lots of dirty energy use = bad, lots of clean energy use = good" one
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Julien Genestoux @ouvre-boite.com · 08/07/2026
Maybe this is a controversial take, but trump and mamdani could both be economically wrong and politically correct.
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Julien Genestoux @ouvre-boite.com · 08/07/2026
In a mature democracy, felons should still be able to be candidates... But in a democracy, people should also know better than vote for them.
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Julien Genestoux @ouvre-boite.com · 04/07/2026
Happy birthday America !
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Julien Genestoux @ouvre-boite.com · 03/07/2026
Same experience from me and the Relay team.
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Julien Genestoux @ouvre-boite.com · 02/07/2026
The best maturity signal I found in engineers is whether they only start coding/fixing/refactoring once they actually have a very very good understanding of the problem. My team is working on a latency issue and it's fascinating to see some jump to "I will change X" vs. "I will measure Y"
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Julien Genestoux @ouvre-boite.com · 01/07/2026
I wish everyone in France was lucky enough to live away from France for a few years, if anything to understand how great France is, and how good they have it.
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Julien Genestoux @ouvre-boite.com · 26/06/2026
Just dropped my son in elementary school for the very last time. Next year, he'll walk to middle school by himself.
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Julien Genestoux @ouvre-boite.com · 25/06/2026
ho wow. @om.co was one of the kindest people I ever met when I was living in SF.
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Julien Genestoux @ouvre-boite.com · 24/06/2026
We can't negotiate with climate.
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Julien Genestoux @ouvre-boite.com · 21/06/2026
Happy father's day to you and your father :)
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Julien Genestoux @ouvre-boite.com · 20/06/2026
Same. If you use AI, you must be the first reviewer and (other) agents should review before humans.
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Julien Genestoux @ouvre-boite.com · 20/06/2026
Trump's health is so bad that I actually wouldn't be surprised if Biden survived him.
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Julien Genestoux @ouvre-boite.com · 19/06/2026
One thing that resonates with me a lot about global warming is that this year (or last) may the be hottest year on record so far, but it is also very likely the coldest of the next few ones. The (dis)symmetry is really what makes it obvious that we're going to face a lot of pain.
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Joe Schiarizzi @votejoe.bsky.social · 19/06/2026
Opioid deaths have declined 52% since 2023. We should be celebrating in the street
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Julien Genestoux @ouvre-boite.com · 16/06/2026
An interesting thing about agents vs other enterprise software is that most companies actually want to use 2 (or more) concurrently. In some strange way, in our org Codex and Claude are not competing. The more we use one, the more we use the the other one as well.
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Julien Genestoux @ouvre-boite.com · 15/06/2026
Until a few months ago, Iran only had a single card to play and that could only play it once: nuclear weapons. They now also can disrupt international fossil fuel markets at any point and put many countries in their knees, economically.
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Julien Genestoux @ouvre-boite.com · 15/06/2026
Exactly. I also want to believe that it's possible to make social media healthy, rather than outright prohibited. We should hold the platform accountable, rather than punish their users.
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Chad Fowler @chadfowler.com · 14/06/2026
aicoding.leaflet.pub
The Implementation Remembers
Every mature system is carrying around lessons that were never written down. They’re encoded as validations, retries, timeouts, workflows, and exceptions. The implementation remembers. The organization forgets
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Julien Genestoux @ouvre-boite.com · 15/06/2026
Now that trump's attention is not on Hormouz, how much time until he threatens Greenland, Cuba or Europe again?
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Rav @rvbdrm.com · 14/06/2026
New Yorkers singing Empire State of Mind
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Julien Genestoux @ouvre-boite.com · 11/06/2026
That DeLorean gave me serious #funconf vibes. Iykyk. Forever grateful for @eamo.net and @paulccampbell.bsky.social
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Julien Genestoux @ouvre-boite.com · 11/06/2026
@mosh.bsky.social nice to meet you at the bluyard event :)
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Julien Genestoux @ouvre-boite.com · 11/06/2026
@chadfowler.com thanks for having me today! And nice to meet you in person!
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Julien Genestoux @ouvre-boite.com · 10/06/2026
Did we end up creating artificial intelligence before we created artificial life?
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Noah @bedmounds.com · 07/06/2026
Photographing Data Centers youtu.be/RK2KMDW3pcw
youtu.be
Photographing Data Centers
YouTube video by Noah Kalina
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Julien Genestoux @ouvre-boite.com · 04/06/2026
In 2018, tech people started wood working. In 2020 they started chess. It looks like in 2026 they are becoming comedians.
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Julien Genestoux @ouvre-boite.com · 04/06/2026
For better (and worse), combining the internet's economies of scale and software's 0 marginal cost means we're all feeding our brain from the same 5 restaurants and the produce growers have only these as customers.
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Julien Genestoux @ouvre-boite.com · 04/06/2026
It's not even a left/right thing though. Content is a slave to the algorithm. It comes down to the fact that there in the end 5 or 6 algorithms (Google search, Meta's feeds, YouTube recommendations and twitter/x curated feed) that basically distribute *all* content in the world.
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Julien Genestoux @ouvre-boite.com · 04/06/2026
Worth reading.
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Julien Genestoux @ouvre-boite.com · 03/06/2026
Not that you care but I just got bitten by a dog. 10k daily steps is more dangerous than it looks.
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