The "Universe 25" experiment

is considered one of the most disturbing experiments in behavioral research.

American scientist John B. Calhoun wanted to understand how social systems react when populations grow rapidly—even under perfect living conditions.

He created a veritable "paradise for mice":

An enclosed space with constantly available food, fresh water, no stress, no danger, and absolute security. He placed four pairs of mice in this perfect environment. The animals reproduced quickly.

Phase 1: Growth

For months, the population exploded—as expected. But after about 315 days, the growth slowed.

With around 600 mice, established social hierarchies formed. The highest-ranking animals dominated the central areas, while many others were pushed to the periphery.

Phase 2: Social Disruption

From then on, striking behavioral patterns emerged:

Dominant males became increasingly aggressive.

Many other males withdrew, became passive, or exhibited fearful behavior.

Females became increasingly irritable—even toward their own offspring.

Many barely cared for their young because they themselves were under constant stress.

Over time, a new group emerged, which Calhoun called "the Beautiful Ones":

Males that didn't fight, didn't participate in social life, and didn't reproduce.

They spent their time exclusively eating, sleeping, and grooming.

Phase 3: Collapse

After some time, a large part of the colony consisted of:
passive males
isolated females
a lack of parental care.

The birth rate dropped to zero, and infant mortality to 100%. Despite unlimited food, cannibalism and other disturbances occurred.

In 1973, the last mouse died—and with it, "Universe 25."

Calhoun repeated the experiment a total of 25 times – the outcome was always the same.

Why is "Universe 25" so well-known?

His findings were later used to investigate and discuss:
-social decay,
-loneliness in large cities,
-loss of connection and identity,
-and the effects of overpopulation.

Universe 25 remains more than a powerful metaphor for what can happen when a society possesses material wealth,

but no longer has a purpose, meaning, or social cohesion.

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The Robots of Dawn, The Naked Sun, Isaac Asimov. Robots of Dawn seems like he didn't want to do a sequel, but his publisher insisted. The Naked Sun he decides to roll with it and get in some prime lectures. Wasn't fond of The Robots of Dawn, didn't finish The Naked Sun.

A Memory Called Empire, Arkady Martine. In a world with space travel but no taxis, can one person save her home from being invaded? Yes, and the surprises at the end felt right and justified the rest of the book.

in reply to TJ of the Side-Eye

I read the original "I robot short series" somewhere. I'd swear I read Naked Sun, but if it was tied into the robot series I missed it.

I read the first three Foundation books two of three times. I tried reading later novels in the series, but they didn't click.

The short story Nightfall is great, I couldn't bring myself to read the novel length version.

1) the short story was nearly perfect
2) silverberg is a fine editor of anthologies, but I've never enjoyed his writing.

thigh boots are a fascinating bit of fantasy realism to me

no, seriously. you know those boots you see in so many fantasy series where the top of the boot folds down? the fold down isn't there for any functional purpose. it was to flaunt wealth. "i can afford to waste THIS MUCH MATERIAL." the same idea, excessive of a relatively expensive material like leather, would mean thigh boots would make perfect sense in european fantasy history. if the knee was sufficiently flexible and it wasn't scandalous to wear a skirt that short, it would have been a real method of flaunting excess wealth

the problem of low income.

I am looking to buy something, I would buy it from a local shop except the bus fair to get the single item is £5.90, and if I order online postage is only £4.00 and budget being what it is I do not need any other things to make the Bus fare go further.

I hate this world where it it is so expensive to be poor.

«Block friday» : des casiers Amazon pris pour cible dans plusieurs villes
contre-attaque.net/2025/12/01/…

"Plusieurs casiers d'Amazon ont été pris pour cibles à l'occasion du "Black friday", la journée du consumérisme.
L’article «Block friday» : des casiers Amazon pris pour cible dans plusieurs villes est apparu en premier sur Contre Attaque."

Tom Basile warns that as the post-Trump era unfolds, voters must engage in local elections to combat the rise of socialism and uphold conservative principles, on Saturday's "America Right Now."

youtu.be/1DG5d0Gnr-U

LIVE: Over 900 killed in floods in Indonesia, Malaysia, Thailand, Sri Lanka
https://www.aljazeera.com/news/liveblog/2025/12/1/live-over-900-killed-in-floods-in-indonesia-malaysia-thailand-sri-lanka?utm_source=flipboard&utm_medium=activitypub

Posted into Asia News @asia-news-AlJazeera

Hilarious. And I say that while living in the country with the highest multicultural proportion in the world, and almost completely at ease with it. Despite Murdoch's and his Newscorp's (Fox, Sky et al) attempts to ruin our society.

Suck it, racists and white nationalist.
juancole.com/2025/11/nationali…

reshared this

Increasing hate, threats and harassment against female politicians are scaring women away from public life and forcing them to censor themselves, the Swedish government’s equality agency has said, warning that this poses a “big threat to democracy.”
theguardian.com/world/2025/dec…

The worst part of being so aware of your own psychology is that it’s so much easier to make yourself worse.
“Devil won’t keep me down, now I’m up in God’s house laid up with a fat bitch on his couch.”
The polyrhythmic nature of the rustling leaves cut through the music, and their atonal noise crawled up my spine like a sleep paralysis demon that sits on your back.

Stories from time in school that was allegedly shut down for law suit involving buse where children allegedly died run by someone who allegedly claimed to have had a position in the military that they never did

m.youtube.com/watch?v=QajKaCJG…

The Take: How Ukraine turned into the world’s drone testing lab
https://www.aljazeera.com/podcasts/2025/12/1/the-take-how-ukraine-turned-into-the-worlds-drone-testing-lab?utm_source=flipboard&utm_medium=activitypub

Posted into Europe News @europe-news-AlJazeera

news.antiwar.com/2025/11/30/re…

Why is work-related migration to rich countries falling?
https://www.aljazeera.com/economy/2025/12/1/why-is-work-related-migration-to-rich-countries-falling?utm_source=flipboard&utm_medium=activitypub

Posted into Economy @economy-AlJazeera