> a hypothetical of non-identical twins with the same exact lifestyle.
Which is a ridiculous hypothetical on the face of it. Non-identical twins, fraternal twins, are hardly more similar than siblings are. And siblings can differ quite a bit. Even if they somehow wound up the same on a few measured characteristics, they will still be rather different on many other characteristics and the hypothetical shows nothing.
Which is a ridiculous hypothetical on the face of it. Non-identical twins, fraternal twins, are hardly more similar than siblings are. And siblings can differ quite a bit. Even if they somehow wound up the same on a few measured characteristics, they will still be rather different on many other characteristics and the hypothetical shows nothing.