system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do accents, like the American accent, form?
gpt
Isolated communities help accents and languages form more quickly. Then they just slowly evolve. Sometimes a very powerful or popular person can spread a change. Look at it on a micro-level. In your group of friends, what if the coolest guy started slurring a word or two or sounding a little different. Pretty soon when you're around him you might slip into it as well. Then it just keeps going.