Sure. It's in our nature to surround ourselves with like-minded people. Back in the old days, people would subscribe to a newspaper, watch TV and listen to radio stations, or go to pubs with folks they felt comfortable with, and that would often lead to gruopthink. There is only so much we can do about it with different platforms. The rest is up to us, individually and collectively. Being polite, open minded, thoughtful and critical takes effort. But it's also in our nature.