There has always been a magical existence in the crypto world, it is a public chain, without DeFi, without GameFi, without an ecosystem, and it cannot issue tokens. Currently, the only users seem to be trading on major centralized exchanges, with a daily trading volume that is not low. Moreover, its market capitalization has consistently ranked in the top ten since 2017, never dropping below that. It is XRP. Can anyone tell me why? How should we understand this token?