That is kind of what I mean though. Peeking over the fence doesn’t put us in their yard — it just allows us to see that their yard looks different to ours. We can see that things can be different to the way we do things.
Search and social media let you see all of these echo chambers all over the place. Your ability to get into them is totally up to you and the decisions you make.
My main point is that most of human history has had us living within such cultural isolation that we could barely imagine other ways of being, let alone the freedom to actually engage with those other ways of being on a regular basis.
This specific topic is one that I want to write about in more detail too. While I think that it is important to be aware of echo chambers, I also think that the attention given to “social media echo-chambers” is excessive and largely misses the point. The echo-chamber of a small town in rural America in the 1950s is infinitely more robust and uniform than any subreddit or Facebook group could ever be.