D
Deleted member 303171
Romanticcel
- Joined
- Dec 26, 2025
- Posts
- 456
- Reputation
- 968
A response to this thread: https://looksmax.org/threads/do-you-fully-believe-in-eugenics.1801807/
I've seen way too many people here denying genetics or claiming eugenics can't work because of environment or it being improbable. I guess people will always find a way to cope with being genetic trash.
Take height for example. People always say nutrition proves environment matters. Sure, populations got taller with better food over generations, but within the same well-nourished country today, individual differences are almost entirely genetic.
Twin studies put heritability at around 80% in adults, this however does NOT mean you could have been 20% taller, or that 20% of height is environmental. This common cope is often reiterated on this site, even though the 80% value explains the height difference between individuals.
We can observe similar patterns with intelligence. Twin studies show heritability up to 80%.
The Wilson Effect: The Increase in Heritability of IQ With Age | Twin Research and Human Genetics | Cambridge Core
The Wilson Effect: The Increase in Heritability of IQ With Age - Volume 16 Issue 5
Now people will say eugenics don't work because most traits are polygenic (meaning thousands of genes determine height, IQ, personality etc.).
But that's simply not true. Polygenic scores already allow embryo screening gains for height, IQ , disease risk and more. It's a hindrance, but will not stop us. Just think of how AI will improve embryo screening in the future.
Even modest changes shift population averages in a few generations. Genetics account for the vast majority of differences in height, looks, IQ, and mental disorders. Denying it is cope. Positive eugenics reduces suffering and creates better people, while negative eugenics are more unlikely to be implemented anytime soon.
@Jason Voorhees argued eugenics isn't viable, saying genotypes and alleles are too unpredictable, that you can't isolate environment, height would be depending on environment, scientists need many of generations like in mice, and logistics make it impossible.
That's mostly wrong.
- Unpredictability is not going to be a problem for much longer, polygenic scores already work for selection.
- You don't need to isolate every environmental variable. The impact of genetics is well established.
- Mice breed faster and cannot be compared to Humans. Huge differences in traits like height and lactose tolerance have been observed in human populations, even without human selection. Just think about it.
Genetics are EVERYTHING.
So why have we not implemented eugenics in every country on this planet yet, you may ask? Well (((they))) only look after themselves.
I recommend watching these videos if you are interested in this topic:
Last edited:
