system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why some people with amnesia can't remember anything about their lives but can still speak their native tongue?
gpt
Memories, abilities, personality, speech and all the other things stored in the brain aren't stored in the same place.  Think of it like your computer hard drive, you don't store every single file on your desktop, you keep them in folders.  The brain has different locations (folders) that deal with different functions.  If one of those folders gets damaged then only those files may be lost and so, only that functionality is impaired.  Damage the speech folder and the person may not be able to communicate.  Damage the short term memory folder and they have short term memory loss.