Do dialect speakers get the same benefits as bilinguals? | Aeon Essays

Source: Do dialect speakers get the same benefits as bilinguals? | Aeon Essays

This argument contradicts notions I have put forward about the negative consequences of multilingualism and multiculturalism.  There may be a way to combine both possibilities. As well, if executive function improvements (and resistance to dementia) can be discerned in multilinguals, does this not suggest that specialization and urbanization, which reduce requirements for executive functions, might not be toxic?