echo chamber
media phenomenon when beliefs are amplified or reinforced by communication and repetition inside a closed system
en-US/ˈɛkoʊ ˈt͡ʃeɪmbɚ/
en-GB/ˈɛkəʊ ˈt͡ʃeɪmbə/
media phenomenon when beliefs are amplified or reinforced by communication and repetition inside a closed system