There are a variety of different concepts that are similar: * media -- [echo chamber](https://en.wikipedia.org/wiki/Media_echo_chamber) * groups -- [groupthink](https://en.wikipedia.org/wiki/Groupthink) * search algorithms / recommendation engines -- [filter bubble](https://en.wikipedia.org/wiki/Filter_bubble) * behavior -- [reinforcement theory](https://en.wikipedia.org/wiki/Reinforcement_theory) / [escalation of commitment](https://en.wikipedia.org/wiki/Escalation_of_commitment) * cognitive biases -- [confirmation bias](https://en.wikipedia.org/wiki/Confirmation_bias) / [cognitive inertia](https://en.wikipedia.org/wiki/Cognitive_inertia) / [selective perception](https://en.wikipedia.org/wiki/Selective_perception) /