The One-Language Ceiling: How English Monolingualism Is Costing Americans More Than They Realize
English has long functioned as the de facto language of global commerce, lulling many Americans into the assumption that linguistic diversity is someone else's competitive advantage. But a growing body of economic and neuroscientific research suggests that monolingualism imposes measurable costs—on earning potential, cognitive flexibility, and the capacity to navigate an increasingly multipolar world.
Jul 18, 2026