A Metareality Hub is a verse-like realm located at the center of any Metareality Link, keeping it stable. due to its hard to reach location making it safe, and the many Information Bubbles (bubbles with info about every reality) within each hub, many high level cilivisations have entered and inhabited countless Metareality Hubs, Information bubbles can be used to gain knowledge about the nature of everything, so being around them is extremely useful to a civilizations' advancement.
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