Thought Chamber
A a metaphorical construct, where an individual's thought processes are influenced by their surroundings or the people they interact with, similar to how an echo chamber can influence an individual's beliefs and opinions. A "thought chamber" could refer to a situation where an individual's thought processes are limited or constricted by their environment or the people around them, preventing them from considering other perspectives or exploring new ideas.
The algorithmic personalized content on social media often creates thought chambers that reinforce users' existing beliefs and prevent them from being exposed to diverse perspectives and alternative ideas.