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Quest to create viable human sex cells in lab progressing rapidly, with huge implications for reproduction

Scientists are just a few years from creating viable human sex cells in the lab, according to an internationally renowned pioneer of the field, who says the advance could open up biology-defying possibilities for reproduction.

Speaking to the Guardian, Prof Katsuhiko Hayashi, a developmental geneticist at the University of Osaka, said rapid progress is being made towards being able to transform adult skin or blood cells into eggs and sperm, a feat of genetic conjury known as in-vitro gametogenesis (IVG).

His own lab is about seven years away from the milestone, he predicts. Other frontrunners include a team at the University of Kyoto and a California-based startup, Conception Biosciences, whose Silicon Valley backers include the OpenAI founder, Sam Altman and whose CEO told the Guardian that growing eggs in the lab “might be the best tool we have to reverse population decline” and could pave the way for human gene editing.

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[-] School_Lunch@lemmy.world 13 points 1 month ago

I'll never understand people who complain about population decline. It's a good thing. There are too many people here already. My thought on reading the headline was that it could be used in a different way. Everyone could be voluntarily sterilized, and then when they are ready and willing to have a kid they could use this new method to produce sex cells. No more unwanted pregnancies.

[-] Mediocre_Bard@lemmy.world 17 points 1 month ago

Population decline is not a problem for humanity. It is a problem for capitalism.

[-] DeathsEmbrace@lemmy.world 3 points 1 month ago* (last edited 1 month ago)

Even worse they're probably looking at the projection and seeing a loss of revenue directly related to population rates. They want more sheep to feed their money making systems.

[-] Onyxonblack@lemmy.zip 1 points 1 month ago

Well of course

[-] IhaveCrabs111@lemmy.world 1 points 1 month ago

People would have lots of kids if each subsequent child didn’t make their existing family’s life much more difficult

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[-] shalafi@lemmy.world 0 points 1 month ago

Depopulation is a problem for any economic system. You can't run any form of government or economy when young workers aren't contributing to the tax base and the aging population requires more and more care.

Sure as clockwork someone will come along and say tax the rich. That only works for so long in this scenario. The rich get rich off our backs. No backs, no rich.

[-] Mediocre_Bard@lemmy.world 0 points 1 month ago

No, see, what if we just had way less people? Fuck taxes, fuck the economy, just have everyone commit to a one child policy. Yeah, I won't be able to sit on my ass and play WoW all day, but is that really helping anyone?

Responses will be delayed by WoW marathons.

[-] iopq@lemmy.world 1 points 1 month ago* (last edited 1 month ago)

When you hit retirement, so will literally everyone else. You want to hire a nurse to wipe your ass because you can't, there's a 25 year waiting list because everyone is old.

Your one grandchild has 6 older people to take care of in addition to their one child (spouse exactly in the same position)

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[-] LodeMike@lemmy.today 0 points 1 month ago
[-] shalafi@lemmy.world 2 points 1 month ago

What a succinct, compelling argument!

[-] LodeMike@lemmy.today 1 points 1 month ago

Alright, ill do a mostly complete argument. Define depopulation please :3

[-] SonOfAntenora@lemmy.world 3 points 1 month ago

That's the actual setup of ergo proxy...not that they are volountarily sterilised. The whole point us the artifucial womb. I don't know if you watched it but if you haven't, do it.

[-] iopq@lemmy.world 1 points 1 month ago

Who is going to take care of all the old people? AI?

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[-] SlartyBartFast@sh.itjust.works 12 points 1 month ago

Production of humans without ties to historical family lines, would they have a number for a surname?

[-] masterofn001@lemmy.ca 6 points 1 month ago

Welcome to the brave new world order

And, in effect, eighty-three almost noseless black brachycephalic Deltas were cold-pressing. The fifty-six four-spindle chucking and turning machines were being manipulated by fifty-six aquiline and ginger Gammas. One hundred and seven heat-conditioned Epsilon Senegalese were working in the foundry. Thirty-three Delta females, long-headed, sandy, with narrow pelvises, and all within 20 millimetres of 1 metre 69 centimetres tall, were cutting screws. In the assembling room, the dynamos were being put together by two sets of Gamma-Plus dwarfs. The two low work-tables faced one another; between them crawled the conveyor with its load of separate parts; forty-seven blonde heads were confronted by forty-seven brown ones. Forty-seven snubs by forty-seven hooks; forty-seven receding by forty-seven prognathous chins. The completed mechanisms were inspected by eighteen identical curly auburn girls in Gamma green, packed in crates by thirty-four short-legged, left-handed male Delta-Minuses, and loaded into waiting trucks and lorries by sixty-three blue-eyed, flaxen and freckled Epsilon Semi-Morons.

https://en.m.wikipedia.org/wiki/Bokanovsky%27s_Process_(Brave_New_World)

[-] SlartyBartFast@sh.itjust.works 5 points 1 month ago

Funnily enough I think I read that novel like twenty years ago

[-] masterofn001@lemmy.ca 6 points 1 month ago

I still say it is/was much more prescient than 1984.

[-] Mothra@mander.xyz 11 points 1 month ago

Ah yes great I feel at ease now, knowing Sam Altman gives the thumbs up to this

That little voice telling me this is a very sharp double edged sword probably doesn't know shit

[-] untorquer@lemmy.world 2 points 1 month ago

"Just a a few years away" means, "We are attempting to grift a billionaire", and it won't be achieved. I wish the company many well funded years of unprofitable operation.

[-] Mothra@mander.xyz 1 points 1 month ago

I hope you are so right, I really hope

[-] untorquer@lemmy.world 1 points 1 month ago

Not like the story will end. This one's in the same cabinet as combatting aging.

[-] Onyxonblack@lemmy.zip 2 points 1 month ago

Altman be praised! /s

[-] SGGeorwell@lemmy.world 1 points 1 month ago

There are so many double-edged swords lying around these days I feel like it’ll be death by a thousand cuts from double-edged swords.

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[-] _chris@lemmy.world 7 points 1 month ago

Aha. So that's why they don't care if everyone but the billionaires die.

[-] kalkulat@lemmy.world 5 points 1 month ago

I first read that as 'spam and eggs' and thought ... who the hell wants lab-grown spam?

[-] bjoern_tantau@swg-empire.de 1 points 1 month ago

Sshh, dear, don't cause a fuss. I'll have your spam. I love it. I'm having spam spam spam spam spam spam spam beaked beans spam spam spam and spam!

Vikings (singing): Spam spam spam spam. Lovely spam! Wonderful spam!

[-] Nastybutler@lemmy.world 2 points 1 month ago
[-] Dr_Box@lemmy.world 1 points 1 month ago* (last edited 1 month ago)

Isnt this just cloning? Like if they grew sperm cells and eggs from my dandruff and combined them

[-] RotSteinFinke@feddit.org 1 points 1 month ago* (last edited 1 month ago)

No, it is something different. Cloning creates a another being with the exact same DNA. This would allow people, who can't produce viable sperm/egg cells, to reproduce with their partner. First patients would be infertile men and women.

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[-] Mothra@mander.xyz 1 points 1 month ago

I guess, if you manage to create both sperm and eggs from the same sample and then use it to create an embryo. It sounds prone to a lot of defects though, for the same reason it's not recommended to have offspring with your siblings. I don't think that's what they're going after here.

The presumption is that they would be able to combine sperm and eggs that are different enough to avoid this. Just like with any regular pregnancy.

Keep in mind we already know how to manipulate/edit genes to enhance or suppress traits. Being able to conceive an embryo in vitro means you can now create a human tailored to your liking, without even needing a womb. That's a couple steps beyond cloning.

[-] Erasmus@lemmy.world 1 points 1 month ago

Blade Runner and 40k have entered the chat.

[-] Hamartiogonic@sopuli.xyz 4 points 1 month ago

And Starwars

Kaminoan meme

[-] Scott_of_the_Arctic@lemmy.world 1 points 1 month ago* (last edited 1 month ago)

I'm going to be the first to eat a Human omelette.

[-] vane@lemmy.world 0 points 1 month ago* (last edited 1 month ago)

They are going after Hitler wet dream to create super human.

[-] GrumpyDuckling@sh.itjust.works 2 points 1 month ago

babies they can sell into slavery.

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this post was submitted on 05 Jul 2025
43 points (97.8% liked)

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