Ask HN: How do I defeat my filter bubble?

Like many Americans, I find myself doing some post-election soul searching. I read - a lot - and listen to podcasts - a lot - and travel and blah blah blah and generally try to be aware of the world. But evidence suggests I am way less aware than I thought.

One lesson of all this is that there's only so aware you're going to get of the world when that awareness is mediated by a screen. In other words, much of the solution is probably not technical. But some of it surely could be. Any suggestions on how to use technology, or something systematic, to become a more fully aware person?