Becoming fluent in a second language is difficult. But for adults, is it impossible? Short Wave hosts Maddie Sofia and Emily Kwong dissect the "critical period hypothesis," a theory which linguists have been debating for decades — with the help of Sarah Frances Phillips
, a Ph.D. student in the linguistics department at New York University.
You can watch a related video about Emily learning Mandarin here
. It's part of the Where We Come From series