English: Conceptual diagram contrasting a filter bubble (an algorithm selects which content reaches a single user) with an echo chamber (like-minded users circulate shared content among themselves while others remain outside the group). Created for the Wikipedia article Algorithmic amplification.
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Captions
A filter bubble (left), in which an algorithm selects what a single user sees, compared with an echo chamber (right), in which like-minded users circulate shared content among themselves.