Dalton Conley

something like intelligence how that works is that the genes give your brain a machine learning algorithm like an ai algorithm it says go out and get data train this algorithm on data it'll refine this algorithm and we see that happen in that the genetic influence on iq is very low in early childhood it's like about 20 percent and it rises to about 80 percent by age 35.

something like intelligence how that works is that the genes give your brain a machine learning algorithm like an ai algorithm it says go out and get data train this algorithm on data it'll refine this algorithm and we see that happen in that the genetic influence on iq is very low in early childhood it's like about 20 percent and it rises to about 80 percent by age 35.

So the genetics blossom through more exposure to the environment, more feedback, interaction, asking questions in school, choosing harder classes, reading more, getting more information, training your mind. All the genes give you is, like I said, an algorithm for interacting with the world. And that second step of the interacting with the environment is really crucial for IQ to become genetic.

So the genetics blossom through more exposure to the environment, more feedback, interaction, asking questions in school, choosing harder classes, reading more, getting more information, training your mind. All the genes give you is, like I said, an algorithm for interacting with the world. And that second step of the interacting with the environment is really crucial for IQ to become genetic.

So ironically, as you get older and more experienced in the environment, the random aspects of the environment matter less and your genes selecting your environmental inputs and interactions matter more. And IQ ends up being about as heritable, meaning as genetically determined as height. But it's a very different pathway to get to that 80 or so percent. Your genetics alone,

So ironically, as you get older and more experienced in the environment, the random aspects of the environment matter less and your genes selecting your environmental inputs and interactions matter more. And IQ ends up being about as heritable, meaning as genetically determined as height. But it's a very different pathway to get to that 80 or so percent. Your genetics alone,

just inside your brain or inside your skin aren't going to be determinative. They need to interact with the environment to come to fruition.

just inside your brain or inside your skin aren't going to be determinative. They need to interact with the environment to come to fruition.

So imagine two sisters that one is born with perfect pitch, the other is not. And that's a highly genetically influenced trait. The parents are just going to invest more in the kid with perfect pitch in terms of musical training.

So imagine two sisters that one is born with perfect pitch, the other is not. And that's a highly genetically influenced trait. The parents are just going to invest more in the kid with perfect pitch in terms of musical training.

the kid without perfect pitch is not going to want even to go to a musical summer camp or go to conservatory because it's not fun to do something you stink at it is fun to get positive reinforcement and that's happening within the family it's going to happen in the wider world that would be a rational example of gene environment interplay like if you have the nate talent for something you get more investment

the kid without perfect pitch is not going to want even to go to a musical summer camp or go to conservatory because it's not fun to do something you stink at it is fun to get positive reinforcement and that's happening within the family it's going to happen in the wider world that would be a rational example of gene environment interplay like if you have the nate talent for something you get more investment

But it might be that there's a third sister and she has perfect pitch too, but she's not as attractive as the first sister who has perfect pitch. And she gets less attention and less investment from her parents. They even think that she doesn't quite sound as good. And that's unconscious bias based on her looks, which are genetically determined as well.

But it might be that there's a third sister and she has perfect pitch too, but she's not as attractive as the first sister who has perfect pitch. And she gets less attention and less investment from her parents. They even think that she doesn't quite sound as good. And that's unconscious bias based on her looks, which are genetically determined as well.

Another example of how this can be kind of pernicious sometimes is a study we did looked at African-American siblings. And we looked at whether or not one was born with lighter or darker skin than the other. And we found that the sibling born with darker skin is more likely to get hypertension. than the one with lighter skin, presumably because they get more stress and discrimination.

Another example of how this can be kind of pernicious sometimes is a study we did looked at African-American siblings. And we looked at whether or not one was born with lighter or darker skin than the other. And we found that the sibling born with darker skin is more likely to get hypertension. than the one with lighter skin, presumably because they get more stress and discrimination.

They're treated differently based on their skin tone. And genetic effects can work in all sorts of ways. Skin tone is controlled by your genes. Eye color is controlled by your genes. And people react to you differently based on those physical characteristics. So it doesn't have to be necessarily a sprinter getting good training because of their talent.

They're treated differently based on their skin tone. And genetic effects can work in all sorts of ways. Skin tone is controlled by your genes. Eye color is controlled by your genes. And people react to you differently based on those physical characteristics. So it doesn't have to be necessarily a sprinter getting good training because of their talent.

It can be something like that as well, unfortunately.

It can be something like that as well, unfortunately.