We're all definitely in an echo chamber. Hacker News is an echo chamber. So is Reddit, FB, Twitter, etc. This is what happens when, as an industry, we move towards "personalization". All of our "personalized" feeds allow businesses to increase their ad revenue, but it siphons us away from the rest of the world. 30 years ago, we were beholden to the large media outlets, which is also bad, but I believe we've overcorre…
* Most of the liberal stuff in my FB/Twitter feeds are from NYT or Washington Post
* Back in the day, consumers of traditional media probably zoned out of TV bits/skimmed over newspaper articles that they didn't agree with
The whole "echo chamber" thing seems like a meme to me. "In the olden days, we used to go to ye olde coffee store and have intellectual conversations with randos with different political beliefs."