noun
Refers to an environment where a person only encounters beliefs or opinions that coincide with their own, reinforcing their existing views. Used in both literal (acoustic) and figurative (social/media) contexts.
SNSは時にエコーチェンバーになりやすい。
Social media can easily become an echo chamber at times.
エコーチェンバーの中にいると、反対意見に
When you are inside an echo chamber, opportunities to encounter opposing opinions decrease.