> Are creativity and problem solving improved in another language? More likely the other way around I think? Anecdotally I've noticed that no matter how fluent

> Are creativity and problem solving improved in another language? More likely the other way around I think? Anecdotally I've noticed that no matter how fluent, the things everyone does in their native language are counting money, swearing when they think they're alone, and a secret third thing. I lived for many years in another country not as an expat but fully integrated in social, family, and work ways. As fluent as an adult learner can get. When I need to sit down and really think through a difficult problem, come up with a novel solution, I do it in my native language.