2% of adult learners of second languages learn to speak without an accent Citation? This doesn’t match my experience: I have heard at least a few hundred non-

2% of adult learners of second languages learn to speak without an accent Citation? This doesn’t match my experience: I have heard at least a few hundred non-native speakers of my native language (Russian), and every single one of them had an accent, obvious after just a few words. The few exceptions were be native speakers of other slavic languages, but even then I suspect they learned Russian as kids.