This episode reflects on how much our environment shapes us. From the advantages of international schools in places like Barcelona—where children can naturally grow into English and even trilingual speakers—to the risks of relying only on Japan’s domestic market and language, the focus is on “environment lottery.” Education abroad can be both an investment and a kind of insurance, not just for children but for the whole family. It also connects to broader questions of how we choose where to live and where to place our assets in an uncertain future.