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

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

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

Well of course

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

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

[-] iopq@lemmy.world 0 points 1 week ago

People used to have 5+ kids and it was considered fine. It's a cultural thing.

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

The culture is linked to the income. People have more kids in poorer countries because they typically don’t have a social safety net so the only way to survive in old age is by having lots of children. When the countries become richer and get social security they start having less kids, especially when kids become a financial burden

[-] shalafi@lemmy.world 0 points 1 week 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.

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

What a succinct, compelling argument!

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

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

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

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

Yeah? And? Intergenerational households are a thing. Communities are a thing. A culture of small communities would be, in my opinion, superior to this isolating capitalist society.

Pivoting now, why would I want anyone to wipe my ass? I'm not a king. If I die because my immediate community and I cannot take care of myself, then that's how it goes. I don't plan on living forever and I certainly don't plan on life being free of suffering. It is my sincere hope and goal to be the kind of person that people want in their lives. *I want to contribute positivity and love, which is, again, in my opinion, the pathway to a good life and thereby maintain a close community that helps one another. *

Third pivot. If, and I do mean IF, you read that last sentence and responded cynically, reflect on where that is coming from and let me know. (I have italicized the sentence for clarity.)

[-] iopq@lemmy.world 0 points 1 week ago

Doesn't matter, you need working age people. A society can't function if it's all old people. Period

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

I hear what you're saying but also see that you have introduced a new idea into the discussion.

I agree that a society comprised solely of the elderly would not work and am not proposing a society comprised of only elderly people. Limiting the number of children people have does not mean that there will be no children. It means that there will be less children. I concede that during the transition to a smaller population there will be periods of suffering as resources and communal abilities to provide care rebalance. However, I also think that is fine. There is no guarantee or promise of an easy or happy existence. That is not to say that there will not be ease and mirth, but rather that experiencing periods of suffering is also part of the human experience.

So, I return to where I started, and state again that declining population is only a concern for capitalism, but will now add that this is because it forces everyone into the same social status. It is less likely that there will be billionaires, millionaires, or independently wealthy non-workers in a society that is focused on existing in the moment. Without an abundance of lower-class people to exploit, I believe that equality would increase.

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

Why accept the suffering of having fewer workers? If the fertility rate of the world is around 2, there are enough workers to sustain a perfectly good life for everyone

You want it to get worse before it gets better, I don't believe it's necessary

[-] Mediocre_Bard@lemmy.world 1 points 1 week ago

Am I correct that you are proposing to stop population at two children per couple?

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

Not necessarily at that exact number, replacement is 2.1 which is what I'm actually proposing

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

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