There’s the anechoic chamber with its complete lack of echo, but at the other end of the scale, there’s the echo chamber. ... at the famous Abbey Road studio in London. ...

Mark Cuban criticized Bluesky's echo chamber for harming engagement and driving users back to Elon Musk's X following a decline in user interactions.

Why It’s Hard for Leaders to Break the Echo Chamber. Leaders, particularly those who are strong-willed and confident, may unintentionally reinforce the echo chamber if they are not self-aware.

Breaking Free From the Echo Chamber “The greatest enemy of knowledge is not ignorance; it is the illusion of knowledge.” –Stephen Hawking.