Can someone explain this r/dataisbeautiful post?

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I’m having trouble understanding what this is showing.
https://www.reddit.com/r/dataisbeautiful/comments/bzcz0o/relations_visual_representation_of_the/?utm_medium=android_app&utm_source=share

In:

Anonymous 0 Comments

It’s showing all of their friends families and acquaintances and how they are interconnected, based on where the connection to OP is from(school, work, etc)