Did you see the part about monozygotic vs dizygotic twins? Do you have any explanation other than genetics for it? For example, do you think parents are 4.5-9

Did you see the part about monozygotic vs dizygotic twins? Do you have any explanation other than genetics for it? For example, do you think parents are 4.5-9x more likely to traumatize both their twin children if the twins are identical instead of fraternal?