The assertion that someone is confined to an echo chamber is useless. We all live in echo chambers; it is part of the process by which we learn. Therefore, calling someone else out for not changing her mind is a futile acknowledgement that you haven’t changed her mind. Confirmation bias, a fancier name for the echo chamber meme, is an important addendum to the human psyche. It becomes a bad quality when it is improperly used. In reality, it is among the best instincts we have installed in our awareness. The bias, at base, is that we will approach all information in terms of validating thought. If we abuse the process, we are confirming, on purpose, incorrect thought. The abuse is a laziness with its own penalty.
— Kilgore Forelle