Aren't the algorithms probably better at curating that bubble than people would be themselves though? If I started using Twitter and I followed Trump, a few people posting weird pro-Trump memes about him at the top of the comments on his tweets, and pro-Trump media, wouldn't the algorithm curate me a pretty nice bubble feed? Twitter always spam my feed with random things people I follow liked/replied to, surely they'd do the same for people with that sort of account too?