That's not what is meant when by echo chamber in this context. They just mean people don't steel man any alternative arguments and instead just don't challenge eachother for fear of being pushed out. I wish we could do that here but unlike in the science group example in your post, nobody here is replicating studies and or strength testing arguments. The far left and the far right are both extremes and both seem like they enjoy echo chambers, but I wonder if that's just the ones that are insecure in their positions, so they need that constant validation. I don't know, but I really don't dig extremists.

Also, I'm not a victim and I'm not forever embattled. I'm allowed to go peacefully everywhere I go. Same with everyone I know.

That's not what is meant when by echo chamber in this context. They just mean people don't steel man any alternative arguments and instead just don't challenge eachother for fear of being pushed out. I wish we could do that here but unlike in the science group example in your post, nobody here is replicating studies and or strength testing arguments.

Also, I'm not a victim and I'm not forever embattled. I'm allowed to go peacefully everywhere I go. Same with everyone I know.