Morgane Pellennec

Journaliste

[Morgane Pellennec @MoPell]

J-25 !
Quel que soit le sort que 2021 nous réserve, il y aura au moins cette petite douceur.

[Nav Toor @heynavtoor]

You have noticed it. ChatGPT feels dumber than it used to. Your prompts that worked six months ago produce worse results now. The writing sounds flatter. The ideas sound safer. The internet itself feels like it is shrinking. Every article reads the same. Every email sounds the same. Every answer sounds like it was written by the same voice.

You thought it was you. It is not you.

Researchers at Oxford and Cambridge published a paper in Nature proving what is happening. They call it Model Collapse.

Here is the mechanism in one sentence. AI trained on AI-generated data gets dumber every generation until it forgets what real human data looked like.

The internet is filling with AI-generated content. Blog posts. Articles. Reviews. Comments. Social media. AI companies scrape the internet to train the next generation of models. Which means the next generation of AI is being trained on the output of the current generation.

Each cycle loses information. Not randomly. It loses the rarest, most unusual, most creative parts first. The researchers call these the "tails of the distribution." The weird ideas. The unexpected perspectives. The things that made the internet feel human. Those disappear first.

What remains is the average. The safe. The expected. The bland.

Then the next generation trains on that. And loses more. And the next generation trains on that. And loses more. The researchers proved this is not a slow decline. Major degradation happens within just a few iterations. Even when some of the original human data is preserved.

They tested it on large language models. On image generators. On statistical models. The pattern was the same every time. The output converges toward a narrow, flattened version of reality that looks nothing like the original data.

The lead researcher put it plainly. "Large language models are like fire. A useful tool. But one that pollutes the environment."

The pollution is invisible. You cannot see which sentence on the internet was written by a human and which was written by AI. Neither can the AI that is about to train on it. And once the tails are gone, they do not come back. The damage is irreversible.

This is not a prediction anymore. It is a diagnosis.

The internet you grew up on was built by humans writing things no algorithm would have written. Strange, personal, imperfect, alive. That internet is being diluted. One generation of AI at a time. And the models trained on what remains are learning a smaller and smaller version of the world.

Model Collapse is not a technical problem. It is a cultural one. The thing that made the internet worth reading is the thing that disappears first.

[Hamza @HowidyHamza]

Congrats to my friend Saher Alghorra for winning the 2026 Pulitzer Prize for Breaking News Photography as a contributor to the NYT. Here are some of the photos Saher took during the Gaza war.

This prize is well deserved. Congratulations, Saher.

[Morgane Pellennec @MoPell]

@glcarlstrom @LCI

[Latest in space @latestinspace]

#BREAKING 🚨: NASA admin Jared Isaacman responds to a letter from a 10-year-old asking to make Pluto a planet again

"We are looking into this."

[Morgane Pellennec @MoPell]

@AhmadJalal_1 @clary_co By the em dash

[NASA @NASA]

Sky full of stars.

Following a successful lunar flyby, the Artemis II astronauts captured this breathtaking photo of our galaxy, the Milky Way, on April 7, 2026.

[Arthur Sarradin | آرثر سري الدين @ArthurSarradin]

🇱🇧 Au Liban, l'armée israélienne fière d'annoncer plus de 100 frappes en 10 minutes... une série de bombardements terrifiants, jamais vus en plein cœur de Beyrouth, qui annoncent un bilan humain catastrophique.

Combien de civils sacrifiés pour cette folie ?

[Morgane Pellennec @MoPell]

@charlesvillaa Hello, je viens de t'envoyer un message, ça doit être dans les "demandes". Merci !

[Uri Kurlianchik @VerminusM]

For the love of God, don't skip your class!

[Colin the Dachshund @DachshundColin]

Imagine if WWIII starts with the IDF assassinating Franz Ferdinand.

[Elizabeth Tsurkov @LizHurra]

This is the third murder of a Palestinian by an armed settler-soldier in a week. Armed settlers are on a rampage and will continue to kill, assault, vandalize and displace Palestinians from their homes as long as the Israeli government doesn't act.

[Morgane Pellennec @MoPell]

@AhmadFPR I see! Thank you very much.

[Morgane Pellennec @MoPell]

@AhmadFPR Could you please elaborate if you don't mind? Thank you!

[Morgane Pellennec @MoPell]

@AnthonySamrani J'écoutais hier votre discussion avec Pierre Haski sur le Liban et la région. Quelle profonde tristesse et quelle frustration d'être impuissant devant tant d'injustice.

[Morgane Pellennec @MoPell]

@Arab_Intel https://t.co/LR4S6HNBVg

[KDP ForeignRelations @kdpfro]

@JimmySecUK Our Party (KDP) reiterates that the Kurdistan Region has not been—and must not become—a platform for causing concern to our neighbors. We will continue on this course, just as we expect the same consideration from our neighbors regarding our rights.

[PoIiMath @politicalmath]

You either die an Ayatollah or you live long enough for them to suspect you're Mossad

[Yashar Ali 🐘 @yashar]

BREAKING

Erfan Soltani, the Iranian man who was at risk of execution and whose case received significant international attention earlier this month, has been released on bail, his family told HENGAW.

[Neil Renic @NC_Renic]

American policies from an American government leading to American police unjustly killing American citizens. in America

American media: “what are we, a bunch of Arabs?”

[Morgane Pellennec @MoPell]

@CdricLabrousse Dans votre live d'hier, vous avez parlé d'une journaliste à suivre, pourriez-vous me redonner son nom svp ? Merci !