I read an article years ago about the internet. Where most people believe it widens your world. The writer noticed that when he would search for things at a friend's home he would get different results. So he had a bunch of search items that he passed out to his friends.
For the various friends it found articles that typically reinforced the friend's ideas or interests.
Something about France might bring a bunch of recipes, restaurants and stuff for the “foodie”, museums and art galleries for the artist, political stuff for the social activist. So it perhaps DOESN'T widen your world - just reinforces it.
“So it perhaps DOESN’T widen your world - just reinforces it.”
Intresting concept for a little social remodeling, well it’s probably not enough to move someone between categories but more than sufficient to keep one from migrating to another.