system
A chat on subreddit /r/NoStupidQuestions
human
I think they'd split off into small groups probably mostly divided by party lines and racial tolerance with some exceptions and only interact with the others with strained courtesy. Obama would absolutely show Abe the 'thanks Obama' meme and Abe would hopefully start using the phrase while chatting to other presidents and it would be both cursed and amazing.
gpt
Maybe not divided by party lines. Back in the 1800s the Republican Party was probably closer to today’s Democrats.