New research suggests Adult Language Learners may outperform Native speakers! A study Called "Critical period for second language acquisition: Evidence from 2/3 million English speakers".

So what’s the Good News in the study?

• Many Students who started learning after the age of 20 outperformed many native English speakers.
• If you want to put in the effort, it’s entirely possible to perform at a native level on an incredibly difficult test like this — thousands of people did just that.
• Studying a language for a year can make you quite fluent.