Remember there's been some self-selection here. What other than naive optimism can explain packing up everything you own and jumping across the atlantic or pac

Remember there's been some self-selection here. What other than naive optimism can explain packing up everything you own and jumping across the atlantic or pacific to lead a new life in a new country? Yet it explains almost all of our parents, grandparents, or great(^n)-grandparents. That's going to bias the culture. And it's a wonderful thing :-)