This video by Click explains the concept
Bitcoin as a concept completely rewires your understanding of how money works.
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Ignore the nonsense in the youtube description from Europol saying billions are being laundered through the Bitcoin network. The idea that criminals would use a public ledger that everyone can see is a nonsense. They use cash. Just like all the other criminals.
Remember that Bitcoin is a tool and it does not care who uses it. And this is a feature not a bug.