Comment by gobdovan

Was discussing the content, not the author. Yes, I am challenging vague discourse about echo chambers, since the mechanism behind an echo chamber is selectively listening to some opinions, while dismissing other sources of authority or correction. To see why this is a problem, consider that parent comment is compatible with both:

"Flat Earth is a cancerous echo chamber"

"As I grew older and became better at arguing, I learned to explain why universities teaching that the Earth is spherical are cancerous ideological echo chambers."